diff --git a/Gruntfile.js b/Gruntfile.js
index f3c4a2d..cebe6ae 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -1,16 +1,23 @@
 module.exports = function(grunt) {
 
+  var reducer = (a, c) => a+' * - '+c.name+' <'+c.email+'> ('+c.url+')\n';
+
+  var pkgConf = grunt.file.readJSON('package.json');
   // Project configuration.
   grunt.initConfig({
-    pkg: grunt.file.readJSON('package.json'),
+    pkg: pkgConf,
     banner: '/*! \n * <%= pkg.title || pkg.name %> v<%= pkg.version %>\n' +
       ' * <%= pkg.homepage %>\n' +
       ' * Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %> <%= pkg.author.url %>\n' +
+      ' * Contributors\n' +
+      (pkgConf.contributors.reduce(reducer, '')) +
+      ' * Maintainers\n' +
+      (pkgConf.maintainers.reduce(reducer, '')) +
       ' * License: <%= pkg.license %>\n' +
       ' */\n',
     jshint: {
       all: [
-        './src/*.js', '*.js', '*.json'
+        './src/*.js', '*.js', '*.json', '!Gruntfile.js'
       ],
       options: {
         jshintrc: '.jshintrc'
@@ -86,6 +93,9 @@ module.exports = function(grunt) {
     clean: {
       temp: {
         src: [ 'tmp' ]
+      },
+      dist: {
+        src: [ 'dist' ]
       }
     },
     bump: {
diff --git a/bower.json b/bower.json
index e00315d..e00ff44 100644
--- a/bower.json
+++ b/bower.json
@@ -1,9 +1,10 @@
 {
   "name": "angular-advanced-searchbox",
-  "version": "3.0.0",
-  "homepage": "https://github.com/dnauck/angular-advanced-searchbox",
+  "version": "3.0.4",
+  "homepage": "https://github.com/marchrius/angular-advanced-searchbox",
   "authors": [
-    "Daniel Nauck <d.nauck@nauck-it.de>"
+    "Daniel Nauck <d.nauck@nauck-it.de>",
+    "Matteo Gaggiano <m.gaggiano@marchrius.org>"
   ],
   "description": "A directive for AngularJS providing a advanced visual search box",
   "main": [
@@ -27,9 +28,9 @@
     "tests"
   ],
   "dependencies": {
-        "angular": "1",
-        "jquery": "2",
-        "bootstrap": "3",
-        "angular-bootstrap": "1"
-    }
+    "angular": "1",
+    "jquery": "2",
+    "bootstrap": "3",
+    "angular-bootstrap": "1"
+  }
 }
diff --git a/dist/angular-advanced-searchbox-tpls.js b/dist/angular-advanced-searchbox-tpls.js
index 3997fbb..203d256 100644
--- a/dist/angular-advanced-searchbox-tpls.js
+++ b/dist/angular-advanced-searchbox-tpls.js
@@ -20,6 +20,9 @@ angular.module('angular-advanced-searchbox', [])
                 parametersLabel: '@',
                 parametersDisplayLimit: '=?',
                 placeholder: '@',
+                trashIconClass: '@',
+                searchIconClass: '@',
+                plusIconClass: '@',
                 searchThrottleTime: '=?'
             },
             replace: true,
@@ -30,6 +33,14 @@ angular.module('angular-advanced-searchbox', [])
                 '$scope', '$attrs', '$element', '$timeout', '$filter', 'setFocusFor',
                 function ($scope, $attrs, $element, $timeout, $filter, setFocusFor) {
 
+                    $scope.trashIconClass = $scope.trashIconClass || 'glyphicon glyphicon-trash';
+                    $scope.searchIconClass = $scope.searchIconClass || 'glyphicon glyphicon-search';
+                    $scope.plusIconClass = $scope.plusIconClass || 'glyphicon glyphicon-plus';
+
+                    function returnAsIs(arg0) {
+                        return arg0;
+                    }
+
                     $scope.parametersLabel = $scope.parametersLabel || 'Parameter Suggestions';
                     $scope.parametersDisplayLimit = $scope.parametersDisplayLimit || 8;
                     $scope.placeholder = $scope.placeholder || 'Search ...';
@@ -165,6 +176,8 @@ angular.module('angular-advanced-searchbox', [])
                             $scope.searchParams.push(
                                 {
                                     key: searchParam.key,
+                                    viewKey:  searchParam.viewKey,
+                                    viewValue:  searchParam.viewValue,
                                     name: searchParam.name,
                                     type: searchParam.type || 'text',
                                     placeholder: searchParam.placeholder,
@@ -311,8 +324,52 @@ angular.module('angular-advanced-searchbox', [])
 
                         searchThrottleTimer = $timeout(function () {
                             angular.forEach(changeBuffer, function (change) {
-                                var searchParam = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
-                                if(searchParam && searchParam.allowMultiple){
+                                var searchParam = $filter('filter')($scope.searchParams, function (param) { return param.key === key; })[0];
+                                var parameter = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
+                                var viewKeyKey = 'key', viewKey, viewValueKey = 'value', viewValue;
+                                // as Object is related to model and not to configuration
+                                var asObject = parameter && parameter.asObject === true;
+                                var isObject = angular.isObject(change.value);
+                                var isDefined = angular.isDefined(change.value);
+                                var isQueryMode = change.key === 'query' && angular.isUndefined(parameter);
+                                var keyTransFn = !isQueryMode && parameter.keyTransformer && angular.isFunction(parameter.keyTransformer) ? parameter.keyTransformer : returnAsIs;
+                                var valueTransFn = !isQueryMode && parameter.valueTransformer && angular.isFunction(parameter.valueTransformer) ? parameter.valueTransformer : returnAsIs;
+                                var viewKeyTransFn = !isQueryMode && parameter.viewKeyTransformer && angular.isFunction(parameter.viewKeyTransformer) ? parameter.viewKeyTransformer : returnAsIs;
+                                var viewValueTransFn = !isQueryMode && parameter.viewValueTransformer && angular.isFunction(parameter.viewValueTransformer) ? parameter.viewValueTransformer : returnAsIs;
+
+                                var value = change.value;
+                                
+                                // activate only if not query mode
+                                if (!isQueryMode) {
+                                    if (isDefined) {
+                                        if (isObject) {
+                                            viewKeyKey = parameter.viewKey;
+                                            viewValueKey = parameter.viewValue;
+                                            viewValue = value[viewValueKey];
+                                            viewKey = value[viewKeyKey];
+                                            value = asObject ? value : value[viewKeyKey];
+                                        } else {
+                                            value = asObject ? { value: value } : value;
+                                        }
+                                    }
+
+                                    var transformValue = value;
+                                    var transformKey = key;
+                                    var transformViewKey = viewKey;
+                                    var transformViewValue = viewValue;
+
+                                    key = keyTransFn(transformKey);
+                                    value = valueTransFn(transformValue);
+                                    viewKey = viewKeyTransFn(transformViewKey);
+                                    viewValue = viewValueTransFn(transformViewValue);
+
+                                    // restore change model with new properties
+                                    change.value = value;
+                                    change.key = key;
+                                }
+                                
+
+                                if(parameter && parameter.allowMultiple) {
                                     if(!angular.isArray($scope.model[change.key]))
                                         $scope.model[change.key] = [];
 
@@ -329,6 +386,15 @@ angular.module('angular-advanced-searchbox', [])
                                     else
                                         $scope.model[change.key] = change.value;
                                 }
+
+                                if (searchParam) {
+                                    searchParam.$$view = {
+                                        key: key,
+                                        value: value,
+                                        viewKey: viewKeyKey,
+                                        viewValue: viewValue
+                                    };
+                                }
                             });
 
                             changeBuffer.length = 0;
@@ -364,6 +430,14 @@ angular.module('angular-advanced-searchbox', [])
             ]
         };
     })
+    .filter('flattenObject', [
+        function() {
+            return function(value, key) {
+                // suggestedValue[searchParam.viewKey] as suggestedValue[searchParam.viewValue] for suggestedValue in searchParam.suggestedValues | filter:$viewValue
+                return angular.isObject(value) ? value[key] : value;
+            };
+        }
+    ])
     .directive('setFocusOn', [
         function() {
             return {
@@ -444,7 +518,7 @@ angular.module('angular-advanced-searchbox').run(['$templateCache', function($te
   'use strict';
 
   $templateCache.put('angular-advanced-searchbox.html',
-    "<div class=advancedSearchBox ng-class={active:focus} ng-init=\"focus = false\" ng-click=\"!focus ? setFocusFor('searchbox') : null\"><span ng-show=\"searchParams.length < 1 && searchQuery.length === 0\" class=\"search-icon glyphicon glyphicon-search\"></span> <a ng-href=\"\" ng-show=\"searchParams.length > 0 || searchQuery.length > 0\" ng-click=removeAll() role=button><span class=\"remove-all-icon glyphicon glyphicon-trash\"></span></a><div><div class=search-parameter ng-repeat=\"searchParam in searchParams\"><a ng-href=\"\" ng-click=removeSearchParam($index) role=button><span class=\"remove glyphicon glyphicon-trash\"></span></a><div class=key data-key={{searchParam.key}} ng-click=\"enterEditMode($event, $index)\">{{searchParam.name}}:</div><div class=value><span ng-show=!searchParam.editMode ng-click=\"enterEditMode($event, $index)\">{{searchParam.value}}</span> <input name=value type={{searchParam.type}} nit-auto-size-input set-focus-on=\"{{'searchParam:' + searchParam.key}}\" ng-keydown=\"keydown($event, $index)\" ng-blur=\"leaveEditMode($event, $index)\" ng-show=searchParam.editMode ng-change=\"searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null\" ng-model=searchParam.value uib-typeahead=\"suggestedValue for suggestedValue in searchParam.suggestedValues | filter:$viewValue\" typeahead-min-length=0 typeahead-on-select=\"searchParamTypeaheadOnSelect($item, searchParam)\" typeahead-editable=\"searchParam.restrictToSuggestedValues !== true\" typeahead-select-on-exact=true typeahead-select-on-blur=\"searchParam.restrictToSuggestedValues !== true ? false : true\" placeholder=\"{{searchParam.placeholder}}\"></div></div><input name=searchbox class=search-parameter-input nit-auto-size-input set-focus-on=searchbox ng-keydown=keydown($event) placeholder={{placeholder}} ng-focus=\"focus = true\" ng-blur=\"focus = false\" uib-typeahead=\"parameter as parameter.name for parameter in parameters | filter:isUnsedParameter | filter:{name:$viewValue} | limitTo:parametersDisplayLimit\" typeahead-on-select=\"searchQueryTypeaheadOnSelect($item, $model, $label)\" ng-change=searchQueryChanged(searchQuery) ng-model=\"searchQuery\"></div><div class=search-parameter-suggestions ng-show=\"parameters && focus\"><span class=title>{{parametersLabel}}:</span> <span class=search-parameter ng-repeat=\"param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit\" data-key={{param.key}} ng-mousedown=addSearchParam(param)>{{param.name}} <i ng-class=\"{'glyphicon glyphicon-plus': param.allowMultiple}\"></i></span></div></div>"
+    "<div class=advancedSearchBox ng-class={active:focus} ng-init=\"focus = false\" ng-click=\"!focus ? setFocusFor('searchbox') : null\"><span ng-show=\"searchParams.length < 1 && searchQuery.length === 0\" class=\"search-icon {{searchIconClass}}\"></span> <a ng-href=\"\" ng-show=\"searchParams.length > 0 || searchQuery.length > 0\" ng-click=removeAll() role=button><span class=\"remove-all-icon {{trashIconClass}}\"></span></a><div><div class=search-parameter ng-repeat=\"searchParam in searchParams\"><a ng-href=\"\" ng-click=removeSearchParam($index) role=button><span class=\"remove {{trashIconClass}}\"></span></a><div class=key data-nit-key={{searchParam.key}} ng-click=\"enterEditMode($event, $index)\">{{searchParam.name}}:</div><div class=value><span ng-show=!searchParam.editMode ng-click=\"enterEditMode($event, $index)\">{{searchParam.$$view.viewValue || searchParam.$$view.value}}</span> <input name=value type={{searchParam.type}} nit-auto-size-input set-focus-on=\"{{'searchParam:' + searchParam.key}}\" ng-keydown=\"keydown($event, $index)\" ng-click=\"enterEditMode($event, $index)\" ng-blur=\"leaveEditMode($event, $index)\" ng-show=searchParam.editMode ng-change=\"searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null\" ng-model=searchParam.value uib-typeahead=\"sv | flattenObject:searchParam.viewKey as sv | flattenObject:searchParam.viewValue for sv in searchParam.suggestedValues | filter:$viewValue\" typeahead-min-length=0 typeahead-on-select=\"searchParamTypeaheadOnSelect($item, searchParam)\" typeahead-editable=\"searchParam.restrictToSuggestedValues !== true\" typeahead-select-on-exact=true typeahead-select-on-blur=\"searchParam.restrictToSuggestedValues !== true ? false : true\" placeholder={{searchParam.placeholder}}></div></div><input name=searchbox class=search-parameter-input nit-auto-size-input set-focus-on=searchbox ng-keydown=keydown($event) placeholder={{placeholder}} ng-focus=\"focus = true\" ng-blur=\"focus = false\" uib-typeahead=\"parameter as parameter.name for parameter in parameters | filter:isUnsedParameter | filter:{name:$viewValue} | limitTo:parametersDisplayLimit\" typeahead-on-select=\"searchQueryTypeaheadOnSelect($item, $model, $label)\" ng-change=searchQueryChanged(searchQuery) ng-model=searchQuery></div><div class=search-parameter-suggestions ng-show=\"parameters && focus\"><span class=title>{{parametersLabel}}:</span> <span class=search-parameter ng-repeat=\"param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit\" data-key={{param.key}} ng-mousedown=addSearchParam(param)>{{param.name}} <i ng-class=\"{ plusIconClass: param.allowMultiple}\"></i></span></div></div>"
   );
 
 }]);
diff --git a/dist/angular-advanced-searchbox-tpls.min.js b/dist/angular-advanced-searchbox-tpls.min.js
index 3ddf561..357ffeb 100644
--- a/dist/angular-advanced-searchbox-tpls.min.js
+++ b/dist/angular-advanced-searchbox-tpls.min.js
@@ -1,7 +1,12 @@
 /*! 
- * angular-advanced-searchbox v3.0.0
- * https://github.com/dnauck/angular-advanced-searchbox
- * Copyright (c) 2016 Nauck IT KG http://www.nauck-it.de/
+ * angular-advanced-searchbox v3.0.4
+ * https://github.com/marchrius/angular-advanced-searchbox
+ * Copyright (c) 2018 Nauck IT KG http://www.nauck-it.de/
+ * Contributors
+ * - Matteo Gaggiano <m.gaggiano@marchirus.org> (http://www.marchrius.org/)
+ * Maintainers
+ * - Matteo Gaggiano <m.gaggiano@marchirus.org> (http://www.marchrius.org/)
  * License: MIT
  */
-!function(){"use strict";angular.module("angular-advanced-searchbox",[]).directive("nitAdvancedSearchbox",function(){return{restrict:"E",scope:{model:"=ngModel",parameters:"=",parametersLabel:"@",parametersDisplayLimit:"=?",placeholder:"@",searchThrottleTime:"=?"},replace:!0,templateUrl:function(a,b){return b.templateUrl||"angular-advanced-searchbox.html"},controller:["$scope","$attrs","$element","$timeout","$filter","setFocusFor",function(a,b,c,d,e,f){function g(){angular.forEach(a.model,function(b,c){if("query"===c)a.searchQuery=b;else{var d=e("filter")(a.parameters,function(a){return a.key===c})[0];void 0!==d&&a.addSearchParam(d,b,!1)}})}function h(b,c,f,g){j&&d.cancel(j),k=e("filter")(k,function(a){return a.key!==c&&a.index!==f}),k.push({command:b,key:c,index:f,value:g}),j=d(function(){angular.forEach(k,function(b){var d=e("filter")(a.parameters,function(a){return a.key===c})[0];d&&d.allowMultiple?(angular.isArray(a.model[b.key])||(a.model[b.key]=[]),"delete"===b.command?(a.model[b.key].splice(b.index,1),0===a.model[b.key].length&&delete a.model[b.key]):a.model[b.key][b.index]=b.value):"delete"===b.command?delete a.model[b.key]:a.model[b.key]=b.value}),k.length=0,a.$emit("advanced-searchbox:modelUpdated",a.model)},a.searchThrottleTime)}function i(a){if(!a)return 0;try{if("number"==typeof a.selectionStart)return"backward"===a.selectionDirection?a.selectionStart:a.selectionEnd;if(document.selection){a.focus();var b=document.selection.createRange(),c=document.selection.createRange().text.length;return b.moveStart("character",-a.value.length),b.text.length-c}}catch(d){}return 0}a.parametersLabel=a.parametersLabel||"Parameter Suggestions",a.parametersDisplayLimit=a.parametersDisplayLimit||8,a.placeholder=a.placeholder||"Search ...",a.searchThrottleTime=a.searchThrottleTime||1e3,a.searchParams=[],a.searchQuery="",a.setFocusFor=f;var j,k=[];a.$watch("model",function(b,c){if(!angular.equals(b,c)){angular.forEach(a.model,function(b,c){if("query"===c&&a.searchQuery!==b)a.searchQuery=b;else{var d=e("filter")(a.parameters,function(a){return a.key===c})[0],f=e("filter")(a.searchParams,function(a){return a.key===c});if(void 0!==d)if(d.allowMultiple){if(angular.isArray(b)||(b=[b]),b.forEach(function(b,c){if(f.some(function(a){return a.index===c})){var e=f.filter(function(a){return a.index===c});e[0].value!==b&&(e[0].value=b)}else a.addSearchParam(d,b,!1)}),b.length<f.length)for(var g=b.length;g<f.length;g++)a.removeSearchParam(a.searchParams.indexOf(f[g]))}else 0===f.length?a.addSearchParam(d,b,!1):f[0].value!==b&&(f[0].value=b)}});for(var d=a.searchParams.length-1;d>=0;d--){var f=a.searchParams[d];if(!a.model.hasOwnProperty(f.key)){var g=a.searchParams.map(function(a){return a.key}).indexOf(f.key);a.removeSearchParam(g)}}}},!0),a.searchParamValueChanged=function(a){h("change",a.key,a.index,a.value)},a.searchQueryChanged=function(a){h("change","query",0,a)},a.enterEditMode=function(b,c){if(void 0!==b&&b.stopPropagation(),void 0!==c){var d=a.searchParams[c];d.editMode=!0,f("searchParam:"+d.key),a.$emit("advanced-searchbox:enteredEditMode",d)}},a.leaveEditMode=function(b,c){if(void 0!==c){var d=a.searchParams[c];d.editMode=!1,a.$emit("advanced-searchbox:leavedEditMode",d),d.value||a.removeSearchParam(c)}},a.searchQueryTypeaheadOnSelect=function(b){a.addSearchParam(b),a.searchQuery="",h("delete","query",0)},a.searchParamTypeaheadOnSelect=function(b,c){c.value=b,a.searchParamValueChanged(c)},a.isUnsedParameter=function(b){return 0===e("filter")(a.searchParams,function(a){return a.key===b.key&&!a.allowMultiple}).length},a.addSearchParam=function(b,c,f){if(void 0===f&&(f=!0),a.isUnsedParameter(b)){var g=0;b.allowMultiple&&(g=e("filter")(a.searchParams,function(a){return a.key===b.key}).length);var i=a.searchParams.push({key:b.key,name:b.name,type:b.type||"text",placeholder:b.placeholder,allowMultiple:b.allowMultiple||!1,suggestedValues:b.suggestedValues||[],restrictToSuggestedValues:b.restrictToSuggestedValues||!1,index:g,value:c||""})-1;h("add",b.key,g,c),f===!0&&d(function(){a.enterEditMode(void 0,i)},100),a.$emit("advanced-searchbox:addedSearchParam",b)}},a.removeSearchParam=function(b){if(void 0!==b){var c=a.searchParams[b];if(a.searchParams.splice(b,1),c.allowMultiple)for(var d=e("filter")(a.searchParams,function(a){return a.key===c.key}),f=0;f<d.length;f++)d[f].index=f;h("delete",c.key,c.index),a.$emit("advanced-searchbox:removedSearchParam",c)}},a.removeAll=function(){a.searchParams.length=0,a.searchQuery="",a.model={},a.$emit("advanced-searchbox:removedAllSearchParam")},a.editPrevious=function(b){void 0!==b&&a.leaveEditMode(void 0,b),b>0?a.enterEditMode(void 0,b-1):a.searchParams.length>0?a.enterEditMode(void 0,a.searchParams.length-1):0===a.searchParams.length&&f("searchbox")},a.editNext=function(b){void 0!==b&&(a.leaveEditMode(void 0,b),b<a.searchParams.length-1?a.enterEditMode(void 0,b+1):f("searchbox"))},a.keydown=function(b,c){var d=[8,9,13,37,39];if(-1!==d.indexOf(b.which)){var e=i(b.target);8==b.which?0===e&&(b.preventDefault(),a.editPrevious(c)):9==b.which?b.shiftKey?(b.preventDefault(),a.editPrevious(c)):(b.preventDefault(),a.editNext(c)):13==b.which?a.editNext(c):37==b.which?0===e&&a.editPrevious(c):39==b.which&&e===b.target.value.length&&a.editNext(c)}},void 0===a.model?a.model={}:g()}]}}).directive("setFocusOn",[function(){return{restrict:"A",link:function(a,b,c){return a.$on("advanced-searchbox:setFocusOn",function(a,d){return d===c.setFocusOn?b[0].focus():void 0})}}}]).factory("setFocusFor",["$rootScope","$timeout",function(a,b){return function(c){return b(function(){return a.$broadcast("advanced-searchbox:setFocusOn",c)})}}]).directive("nitAutoSizeInput",["$timeout",function(a){return{restrict:"A",scope:{model:"=ngModel"},link:function(b,c){function d(){a(function(){-1!==e.indexOf(c[0].type||"text")&&(g.text(c.val()||c.attr("placeholder")),c.css("width",g.outerWidth()+10))})}var e=["text","search","tel","url","email","password","number"],f=angular.element('<div style="position: fixed; top: -9999px; left: 0px;"></div>'),g=angular.element('<span style="white-space:pre;"></span>'),h="none"===c.css("maxWidth")?c.parent().innerWidth():c.css("maxWidth");c.css("maxWidth",h),angular.forEach(["fontSize","fontFamily","fontWeight","fontStyle","letterSpacing","textTransform","wordSpacing","textIndent","boxSizing","borderLeftWidth","borderRightWidth","borderLeftStyle","borderRightStyle","paddingLeft","paddingRight","marginLeft","marginRight"],function(a){g.css(a,c.css(a))}),angular.element("body").append(f.append(g)),d(),b.model?b.$watch("model",function(){d()}):c.on("keypress keyup keydown focus input propertychange change",function(){d()})}}}])}(),angular.module("angular-advanced-searchbox").run(["$templateCache",function(a){"use strict";a.put("angular-advanced-searchbox.html",'<div class=advancedSearchBox ng-class={active:focus} ng-init="focus = false" ng-click="!focus ? setFocusFor(\'searchbox\') : null"><span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon glyphicon glyphicon-search"></span> <a ng-href="" ng-show="searchParams.length > 0 || searchQuery.length > 0" ng-click=removeAll() role=button><span class="remove-all-icon glyphicon glyphicon-trash"></span></a><div><div class=search-parameter ng-repeat="searchParam in searchParams"><a ng-href="" ng-click=removeSearchParam($index) role=button><span class="remove glyphicon glyphicon-trash"></span></a><div class=key data-key={{searchParam.key}} ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div><div class=value><span ng-show=!searchParam.editMode ng-click="enterEditMode($event, $index)">{{searchParam.value}}</span> <input name=value type={{searchParam.type}} nit-auto-size-input set-focus-on="{{\'searchParam:\' + searchParam.key}}" ng-keydown="keydown($event, $index)" ng-blur="leaveEditMode($event, $index)" ng-show=searchParam.editMode ng-change="searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null" ng-model=searchParam.value uib-typeahead="suggestedValue for suggestedValue in searchParam.suggestedValues | filter:$viewValue" typeahead-min-length=0 typeahead-on-select="searchParamTypeaheadOnSelect($item, searchParam)" typeahead-editable="searchParam.restrictToSuggestedValues !== true" typeahead-select-on-exact=true typeahead-select-on-blur="searchParam.restrictToSuggestedValues !== true ? false : true" placeholder="{{searchParam.placeholder}}"></div></div><input name=searchbox class=search-parameter-input nit-auto-size-input set-focus-on=searchbox ng-keydown=keydown($event) placeholder={{placeholder}} ng-focus="focus = true" ng-blur="focus = false" uib-typeahead="parameter as parameter.name for parameter in parameters | filter:isUnsedParameter | filter:{name:$viewValue} | limitTo:parametersDisplayLimit" typeahead-on-select="searchQueryTypeaheadOnSelect($item, $model, $label)" ng-change=searchQueryChanged(searchQuery) ng-model="searchQuery"></div><div class=search-parameter-suggestions ng-show="parameters && focus"><span class=title>{{parametersLabel}}:</span> <span class=search-parameter ng-repeat="param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit" data-key={{param.key}} ng-mousedown=addSearchParam(param)>{{param.name}} <i ng-class="{\'glyphicon glyphicon-plus\': param.allowMultiple}"></i></span></div></div>')}]);
\ No newline at end of file
+
+!function(){"use strict";angular.module("angular-advanced-searchbox",[]).directive("nitAdvancedSearchbox",function(){return{restrict:"E",scope:{model:"=ngModel",parameters:"=",parametersLabel:"@",parametersDisplayLimit:"=?",placeholder:"@",trashIconClass:"@",searchIconClass:"@",plusIconClass:"@",searchThrottleTime:"=?"},replace:!0,templateUrl:function(e,a){return a.templateUrl||"angular-advanced-searchbox.html"},controller:["$scope","$attrs","$element","$timeout","$filter","setFocusFor",function(P,e,a,s,k,t){function x(e){return e}var n;P.trashIconClass=P.trashIconClass||"glyphicon glyphicon-trash",P.searchIconClass=P.searchIconClass||"glyphicon glyphicon-search",P.plusIconClass=P.plusIconClass||"glyphicon glyphicon-plus",P.parametersLabel=P.parametersLabel||"Parameter Suggestions",P.parametersDisplayLimit=P.parametersDisplayLimit||8,P.placeholder=P.placeholder||"Search ...",P.searchThrottleTime=P.searchThrottleTime||1e3,P.searchParams=[],P.searchQuery="",P.setFocusFor=t;var i=[];function c(e,y,a,r){n&&s.cancel(n),(i=k("filter")(i,function(e){return e.key!==y&&e.index!==a})).push({command:e,key:y,index:a,value:r}),n=s(function(){angular.forEach(i,function(e){var a,r,t=k("filter")(P.searchParams,function(e){return e.key===y})[0],n=k("filter")(P.parameters,function(e){return e.key===y})[0],s="key",i=n&&!0===n.asObject,c=angular.isObject(e.value),l=angular.isDefined(e.value),o="query"===e.key&&angular.isUndefined(n),u=!o&&n.keyTransformer&&angular.isFunction(n.keyTransformer)?n.keyTransformer:x,d=!o&&n.valueTransformer&&angular.isFunction(n.valueTransformer)?n.valueTransformer:x,h=!o&&n.viewKeyTransformer&&angular.isFunction(n.viewKeyTransformer)?n.viewKeyTransformer:x,m=!o&&n.viewValueTransformer&&angular.isFunction(n.viewValueTransformer)?n.viewValueTransformer:x,f=e.value;if(!o){l&&(c?(s=n.viewKey,r=f[n.viewValue],a=f[s],f=i?f:f[s]):f=i?{value:f}:f);var v=f,p=a,g=r;y=u(y),f=d(v),a=h(p),r=m(g),e.value=f,e.key=y}n&&n.allowMultiple?(angular.isArray(P.model[e.key])||(P.model[e.key]=[]),"delete"===e.command?(P.model[e.key].splice(e.index,1),0===P.model[e.key].length&&delete P.model[e.key]):P.model[e.key][e.index]=e.value):"delete"===e.command?delete P.model[e.key]:P.model[e.key]=e.value,t&&(t.$$view={key:y,value:f,viewKey:s,viewValue:r})}),i.length=0,P.$emit("advanced-searchbox:modelUpdated",P.model)},P.searchThrottleTime)}P.$watch("model",function(e,a){if(!angular.equals(e,a)){angular.forEach(P.model,function(e,a){if("query"===a&&P.searchQuery!==e)P.searchQuery=e;else{var t=k("filter")(P.parameters,function(e){return e.key===a})[0],n=k("filter")(P.searchParams,function(e){return e.key===a});if(void 0!==t)if(t.allowMultiple){if(angular.isArray(e)||(e=[e]),e.forEach(function(e,a){if(n.some(function(e){return e.index===a})){var r=n.filter(function(e){return e.index===a});r[0].value!==e&&(r[0].value=e)}else P.addSearchParam(t,e,!1)}),e.length<n.length)for(var r=e.length;r<n.length;r++)P.removeSearchParam(P.searchParams.indexOf(n[r]))}else 0===n.length?P.addSearchParam(t,e,!1):n[0].value!==e&&(n[0].value=e)}});for(var r=P.searchParams.length-1;0<=r;r--){var t=P.searchParams[r];if(!P.model.hasOwnProperty(t.key)){var n=P.searchParams.map(function(e){return e.key}).indexOf(t.key);P.removeSearchParam(n)}}}},!0),P.searchParamValueChanged=function(e){c("change",e.key,e.index,e.value)},P.searchQueryChanged=function(e){c("change","query",0,e)},P.enterEditMode=function(e,a){if(void 0!==e&&e.stopPropagation(),void 0!==a){var r=P.searchParams[a];r.editMode=!0,t("searchParam:"+r.key),P.$emit("advanced-searchbox:enteredEditMode",r)}},P.leaveEditMode=function(e,a){if(void 0!==a){var r=P.searchParams[a];r.editMode=!1,P.$emit("advanced-searchbox:leavedEditMode",r),r.value||P.removeSearchParam(a)}},P.searchQueryTypeaheadOnSelect=function(e,a,r){P.addSearchParam(e),P.searchQuery="",c("delete","query",0)},P.searchParamTypeaheadOnSelect=function(e,a){a.value=e,P.searchParamValueChanged(a)},P.isUnsedParameter=function(a,e){return 0===k("filter")(P.searchParams,function(e){return e.key===a.key&&!e.allowMultiple}).length},P.addSearchParam=function(a,e,r){if(void 0===r&&(r=!0),P.isUnsedParameter(a)){var t=0;a.allowMultiple&&(t=k("filter")(P.searchParams,function(e){return e.key===a.key}).length);var n=P.searchParams.push({key:a.key,viewKey:a.viewKey,viewValue:a.viewValue,name:a.name,type:a.type||"text",placeholder:a.placeholder,allowMultiple:a.allowMultiple||!1,suggestedValues:a.suggestedValues||[],restrictToSuggestedValues:a.restrictToSuggestedValues||!1,index:t,value:e||""})-1;c("add",a.key,t,e),!0===r&&s(function(){P.enterEditMode(void 0,n)},100),P.$emit("advanced-searchbox:addedSearchParam",a)}},P.removeSearchParam=function(e){if(void 0!==e){var a=P.searchParams[e];if(P.searchParams.splice(e,1),a.allowMultiple)for(var r=k("filter")(P.searchParams,function(e){return e.key===a.key}),t=0;t<r.length;t++)r[t].index=t;c("delete",a.key,a.index),P.$emit("advanced-searchbox:removedSearchParam",a)}},P.removeAll=function(){P.searchParams.length=0,P.searchQuery="",P.model={},P.$emit("advanced-searchbox:removedAllSearchParam")},P.editPrevious=function(e){void 0!==e&&P.leaveEditMode(void 0,e),0<e?P.enterEditMode(void 0,e-1):0<P.searchParams.length?P.enterEditMode(void 0,P.searchParams.length-1):0===P.searchParams.length&&t("searchbox")},P.editNext=function(e){void 0!==e&&(P.leaveEditMode(void 0,e),e<P.searchParams.length-1?P.enterEditMode(void 0,e+1):t("searchbox"))},P.keydown=function(e,a){if(-1!==[8,9,13,37,39].indexOf(e.which)){var r=function(e){if(!e)return 0;try{if("number"==typeof e.selectionStart)return"backward"===e.selectionDirection?e.selectionStart:e.selectionEnd;if(document.selection){e.focus();var a=document.selection.createRange(),r=document.selection.createRange().text.length;return a.moveStart("character",-e.value.length),a.text.length-r}}catch(e){}return 0}(e.target);8==e.which?0===r&&(e.preventDefault(),P.editPrevious(a)):9==e.which?e.shiftKey?(e.preventDefault(),P.editPrevious(a)):(e.preventDefault(),P.editNext(a)):13==e.which?P.editNext(a):37==e.which?0===r&&P.editPrevious(a):39==e.which&&r===e.target.value.length&&P.editNext(a)}},void 0===P.model?P.model={}:angular.forEach(P.model,function(e,a){if("query"===a)P.searchQuery=e;else{var r=k("filter")(P.parameters,function(e){return e.key===a})[0];void 0!==r&&P.addSearchParam(r,e,!1)}})}]}}).filter("flattenObject",[function(){return function(e,a){return angular.isObject(e)?e[a]:e}}]).directive("setFocusOn",[function(){return{restrict:"A",link:function(e,r,t){return e.$on("advanced-searchbox:setFocusOn",function(e,a){if(a===t.setFocusOn)return r[0].focus()})}}}]).factory("setFocusFor",["$rootScope","$timeout",function(a,r){return function(e){return r(function(){return a.$broadcast("advanced-searchbox:setFocusOn",e)})}}]).directive("nitAutoSizeInput",["$timeout",function(l){return{restrict:"A",scope:{model:"=ngModel"},link:function(e,a,r){var t=["text","search","tel","url","email","password","number"],n=angular.element('<div style="position: fixed; top: -9999px; left: 0px;"></div>'),s=angular.element('<span style="white-space:pre;"></span>'),i="none"===a.css("maxWidth")?a.parent().innerWidth():a.css("maxWidth");function c(){l(function(){-1!==t.indexOf(a[0].type||"text")&&(s.text(a.val()||a.attr("placeholder")),a.css("width",s.outerWidth()+10))})}a.css("maxWidth",i),angular.forEach(["fontSize","fontFamily","fontWeight","fontStyle","letterSpacing","textTransform","wordSpacing","textIndent","boxSizing","borderLeftWidth","borderRightWidth","borderLeftStyle","borderRightStyle","paddingLeft","paddingRight","marginLeft","marginRight"],function(e){s.css(e,a.css(e))}),angular.element("body").append(n.append(s)),c(),e.model?e.$watch("model",function(){c()}):a.on("keypress keyup keydown focus input propertychange change",function(){c()})}}}])}(),angular.module("angular-advanced-searchbox").run(["$templateCache",function(e){"use strict";e.put("angular-advanced-searchbox.html",'<div class=advancedSearchBox ng-class={active:focus} ng-init="focus = false" ng-click="!focus ? setFocusFor(\'searchbox\') : null"><span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon {{searchIconClass}}"></span> <a ng-href="" ng-show="searchParams.length > 0 || searchQuery.length > 0" ng-click=removeAll() role=button><span class="remove-all-icon {{trashIconClass}}"></span></a><div><div class=search-parameter ng-repeat="searchParam in searchParams"><a ng-href="" ng-click=removeSearchParam($index) role=button><span class="remove {{trashIconClass}}"></span></a><div class=key data-nit-key={{searchParam.key}} ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div><div class=value><span ng-show=!searchParam.editMode ng-click="enterEditMode($event, $index)">{{searchParam.$$view.viewValue || searchParam.$$view.value}}</span> <input name=value type={{searchParam.type}} nit-auto-size-input set-focus-on="{{\'searchParam:\' + searchParam.key}}" ng-keydown="keydown($event, $index)" ng-click="enterEditMode($event, $index)" ng-blur="leaveEditMode($event, $index)" ng-show=searchParam.editMode ng-change="searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null" ng-model=searchParam.value uib-typeahead="sv | flattenObject:searchParam.viewKey as sv | flattenObject:searchParam.viewValue for sv in searchParam.suggestedValues | filter:$viewValue" typeahead-min-length=0 typeahead-on-select="searchParamTypeaheadOnSelect($item, searchParam)" typeahead-editable="searchParam.restrictToSuggestedValues !== true" typeahead-select-on-exact=true typeahead-select-on-blur="searchParam.restrictToSuggestedValues !== true ? false : true" placeholder={{searchParam.placeholder}}></div></div><input name=searchbox class=search-parameter-input nit-auto-size-input set-focus-on=searchbox ng-keydown=keydown($event) placeholder={{placeholder}} ng-focus="focus = true" ng-blur="focus = false" uib-typeahead="parameter as parameter.name for parameter in parameters | filter:isUnsedParameter | filter:{name:$viewValue} | limitTo:parametersDisplayLimit" typeahead-on-select="searchQueryTypeaheadOnSelect($item, $model, $label)" ng-change=searchQueryChanged(searchQuery) ng-model=searchQuery></div><div class=search-parameter-suggestions ng-show="parameters && focus"><span class=title>{{parametersLabel}}:</span> <span class=search-parameter ng-repeat="param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit" data-key={{param.key}} ng-mousedown=addSearchParam(param)>{{param.name}} <i ng-class="{ plusIconClass: param.allowMultiple}"></i></span></div></div>')}]);
\ No newline at end of file
diff --git a/dist/angular-advanced-searchbox.html b/dist/angular-advanced-searchbox.html
index 8210ce2..bf9581b 100644
--- a/dist/angular-advanced-searchbox.html
+++ b/dist/angular-advanced-searchbox.html
@@ -1,26 +1,27 @@
 <div class="advancedSearchBox" ng-class="{active:focus}" ng-init="focus = false" ng-click="!focus ? setFocusFor('searchbox') : null">
-    <span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon glyphicon glyphicon-search"></span>
+    <span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon {{searchIconClass}}"></span>
     <a ng-href="" ng-show="searchParams.length > 0 || searchQuery.length > 0" ng-click="removeAll()" role="button">
-        <span class="remove-all-icon glyphicon glyphicon-trash"></span>
+        <span class="remove-all-icon {{trashIconClass}}"></span>
     </a>
     <div>
         <div class="search-parameter" ng-repeat="searchParam in searchParams">
             <a ng-href="" ng-click="removeSearchParam($index)" role="button">
-                <span class="remove glyphicon glyphicon-trash"></span>
+                <span class="remove {{trashIconClass}}"></span>
             </a>
-            <div class="key" data-key="{{searchParam.key}}" ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div>
+            <div class="key" data-nit-key="{{searchParam.key}}" ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div>
             <div class="value">
-                <span ng-show="!searchParam.editMode" ng-click="enterEditMode($event, $index)">{{searchParam.value}}</span>
+                <span ng-show="!searchParam.editMode" ng-click="enterEditMode($event, $index)">{{searchParam.$$view.viewValue || searchParam.$$view.value}}</span>
                 <input name="value"
                        type="{{searchParam.type}}"
                        nit-auto-size-input
                        set-focus-on="{{'searchParam:' + searchParam.key}}"
                        ng-keydown="keydown($event, $index)"
+                       ng-click="enterEditMode($event, $index)"
                        ng-blur="leaveEditMode($event, $index)"
                        ng-show="searchParam.editMode"
                        ng-change="searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null"
                        ng-model="searchParam.value"
-                       uib-typeahead="suggestedValue for suggestedValue in searchParam.suggestedValues | filter:$viewValue"
+                       uib-typeahead="sv | flattenObject:searchParam.viewKey as sv | flattenObject:searchParam.viewValue for sv in searchParam.suggestedValues | filter:$viewValue"
                        typeahead-min-length="0"
                        typeahead-on-select="searchParamTypeaheadOnSelect($item, searchParam)"
                        typeahead-editable="searchParam.restrictToSuggestedValues !== true"
@@ -48,7 +49,7 @@
         <span class="search-parameter" ng-repeat="param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit" 
           data-key="{{param.key}}"
           ng-mousedown="addSearchParam(param)">
-          {{param.name}} <i ng-class="{'glyphicon glyphicon-plus': param.allowMultiple}"></i>
+          {{param.name}} <i ng-class="{ plusIconClass: param.allowMultiple}"></i>
         </span>
     </div>
 </div>
\ No newline at end of file
diff --git a/dist/angular-advanced-searchbox.js b/dist/angular-advanced-searchbox.js
index 227c295..0544bd8 100644
--- a/dist/angular-advanced-searchbox.js
+++ b/dist/angular-advanced-searchbox.js
@@ -20,6 +20,9 @@ angular.module('angular-advanced-searchbox', [])
                 parametersLabel: '@',
                 parametersDisplayLimit: '=?',
                 placeholder: '@',
+                trashIconClass: '@',
+                searchIconClass: '@',
+                plusIconClass: '@',
                 searchThrottleTime: '=?'
             },
             replace: true,
@@ -30,6 +33,14 @@ angular.module('angular-advanced-searchbox', [])
                 '$scope', '$attrs', '$element', '$timeout', '$filter', 'setFocusFor',
                 function ($scope, $attrs, $element, $timeout, $filter, setFocusFor) {
 
+                    $scope.trashIconClass = $scope.trashIconClass || 'glyphicon glyphicon-trash';
+                    $scope.searchIconClass = $scope.searchIconClass || 'glyphicon glyphicon-search';
+                    $scope.plusIconClass = $scope.plusIconClass || 'glyphicon glyphicon-plus';
+
+                    function returnAsIs(arg0) {
+                        return arg0;
+                    }
+
                     $scope.parametersLabel = $scope.parametersLabel || 'Parameter Suggestions';
                     $scope.parametersDisplayLimit = $scope.parametersDisplayLimit || 8;
                     $scope.placeholder = $scope.placeholder || 'Search ...';
@@ -165,6 +176,8 @@ angular.module('angular-advanced-searchbox', [])
                             $scope.searchParams.push(
                                 {
                                     key: searchParam.key,
+                                    viewKey:  searchParam.viewKey,
+                                    viewValue:  searchParam.viewValue,
                                     name: searchParam.name,
                                     type: searchParam.type || 'text',
                                     placeholder: searchParam.placeholder,
@@ -311,8 +324,52 @@ angular.module('angular-advanced-searchbox', [])
 
                         searchThrottleTimer = $timeout(function () {
                             angular.forEach(changeBuffer, function (change) {
-                                var searchParam = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
-                                if(searchParam && searchParam.allowMultiple){
+                                var searchParam = $filter('filter')($scope.searchParams, function (param) { return param.key === key; })[0];
+                                var parameter = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
+                                var viewKeyKey = 'key', viewKey, viewValueKey = 'value', viewValue;
+                                // as Object is related to model and not to configuration
+                                var asObject = parameter && parameter.asObject === true;
+                                var isObject = angular.isObject(change.value);
+                                var isDefined = angular.isDefined(change.value);
+                                var isQueryMode = change.key === 'query' && angular.isUndefined(parameter);
+                                var keyTransFn = !isQueryMode && parameter.keyTransformer && angular.isFunction(parameter.keyTransformer) ? parameter.keyTransformer : returnAsIs;
+                                var valueTransFn = !isQueryMode && parameter.valueTransformer && angular.isFunction(parameter.valueTransformer) ? parameter.valueTransformer : returnAsIs;
+                                var viewKeyTransFn = !isQueryMode && parameter.viewKeyTransformer && angular.isFunction(parameter.viewKeyTransformer) ? parameter.viewKeyTransformer : returnAsIs;
+                                var viewValueTransFn = !isQueryMode && parameter.viewValueTransformer && angular.isFunction(parameter.viewValueTransformer) ? parameter.viewValueTransformer : returnAsIs;
+
+                                var value = change.value;
+                                
+                                // activate only if not query mode
+                                if (!isQueryMode) {
+                                    if (isDefined) {
+                                        if (isObject) {
+                                            viewKeyKey = parameter.viewKey;
+                                            viewValueKey = parameter.viewValue;
+                                            viewValue = value[viewValueKey];
+                                            viewKey = value[viewKeyKey];
+                                            value = asObject ? value : value[viewKeyKey];
+                                        } else {
+                                            value = asObject ? { value: value } : value;
+                                        }
+                                    }
+
+                                    var transformValue = value;
+                                    var transformKey = key;
+                                    var transformViewKey = viewKey;
+                                    var transformViewValue = viewValue;
+
+                                    key = keyTransFn(transformKey);
+                                    value = valueTransFn(transformValue);
+                                    viewKey = viewKeyTransFn(transformViewKey);
+                                    viewValue = viewValueTransFn(transformViewValue);
+
+                                    // restore change model with new properties
+                                    change.value = value;
+                                    change.key = key;
+                                }
+                                
+
+                                if(parameter && parameter.allowMultiple) {
                                     if(!angular.isArray($scope.model[change.key]))
                                         $scope.model[change.key] = [];
 
@@ -329,6 +386,15 @@ angular.module('angular-advanced-searchbox', [])
                                     else
                                         $scope.model[change.key] = change.value;
                                 }
+
+                                if (searchParam) {
+                                    searchParam.$$view = {
+                                        key: key,
+                                        value: value,
+                                        viewKey: viewKeyKey,
+                                        viewValue: viewValue
+                                    };
+                                }
                             });
 
                             changeBuffer.length = 0;
@@ -364,6 +430,14 @@ angular.module('angular-advanced-searchbox', [])
             ]
         };
     })
+    .filter('flattenObject', [
+        function() {
+            return function(value, key) {
+                // suggestedValue[searchParam.viewKey] as suggestedValue[searchParam.viewValue] for suggestedValue in searchParam.suggestedValues | filter:$viewValue
+                return angular.isObject(value) ? value[key] : value;
+            };
+        }
+    ])
     .directive('setFocusOn', [
         function() {
             return {
diff --git a/dist/angular-advanced-searchbox.min.css b/dist/angular-advanced-searchbox.min.css
index 29b9198..29b2f8e 100644
--- a/dist/angular-advanced-searchbox.min.css
+++ b/dist/angular-advanced-searchbox.min.css
@@ -1,8 +1 @@
-/*! 
- * angular-advanced-searchbox v3.0.0
- * https://github.com/dnauck/angular-advanced-searchbox
- * Copyright (c) 2016 Nauck IT KG http://www.nauck-it.de/
- * License: MIT
- */
-
-.advancedSearchBox{display:block;position:relative;margin:5px 0 10px;border:1px solid #ccc;border-radius:4px;-webkit-border-radius:4px;-moz-border-radius:4px;min-height:40px;padding:0 9px;background-color:#fff;cursor:text;line-height:38px}.advancedSearchBox.active{border-color:#66afe9}.advancedSearchBox .search-icon{float:right;padding:10px 0 0 10px}.advancedSearchBox .remove-all-icon{float:right;padding:10px 0 0 10px;cursor:pointer}.advancedSearchBox .search-parameter{display:inline-block;height:24px;margin:0 7px 0 0;background-color:#5bc0de;padding:0 5px;border-radius:4px;-webkit-border-radius:4px;-moz-border-radius:4px;line-height:24px;cursor:default;transition:box-shadow 100ms linear}.advancedSearchBox .search-parameter:hover{box-shadow:0 3px 3px rgba(0,0,0,.2)}.advancedSearchBox .search-parameter div{float:left;margin:0 2px}.advancedSearchBox .search-parameter .remove{color:#fff;margin-left:5px;cursor:pointer}.advancedSearchBox .search-parameter .key,.advancedSearchBox .search-parameter .value span{color:#fff}.advancedSearchBox .search-parameter .value input{height:24px}.advancedSearchBox .search-parameter-input{display:inline-block;width:auto;height:24px;border:0;margin:0;padding:0}.advancedSearchBox .search-parameter-input:focus{box-shadow:none;outline:0}.advancedSearchBox .search-parameter-suggestions{cursor:auto;display:block}.advancedSearchBox .search-parameter-suggestions .title{display:block;float:left;height:25px;margin:7px 7px 0 0;background-color:transparent;color:#888;font-weight:700;padding:0 5px;font-size:14px;line-height:25px}.advancedSearchBox .search-parameter-suggestions .search-parameter{cursor:pointer;background-color:#bdbdbd;color:#fff}
\ No newline at end of file
+.advancedSearchBox{display:block;position:relative;margin:5px 0 10px 0;border:1px solid #ccc;border-radius:4px;-webkit-border-radius:4px;-moz-border-radius:4px;min-height:40px;padding:0 9px;background-color:#fff;cursor:text;line-height:38px}.advancedSearchBox.active{border-color:#66afe9}.advancedSearchBox .search-icon{float:right;padding:10px 0 0 10px}.advancedSearchBox .remove-all-icon{float:right;padding:10px 0 0 10px;cursor:pointer}.advancedSearchBox .search-parameter{display:inline-block;height:24px;margin:0 7px 0 0;background-color:#5bc0de;padding:0 5px;border-radius:4px;-webkit-border-radius:4px;-moz-border-radius:4px;line-height:24px;cursor:default;transition:box-shadow .1s linear}.advancedSearchBox .search-parameter:hover{box-shadow:0 3px 3px rgba(0,0,0,.2)}.advancedSearchBox .search-parameter div{float:left;margin:0 2px}.advancedSearchBox .search-parameter .remove{color:#fff;margin-left:5px;cursor:pointer}.advancedSearchBox .search-parameter .key{color:#fff}.advancedSearchBox .search-parameter .value span{color:#fff}.advancedSearchBox .search-parameter .value input{height:24px}.advancedSearchBox .search-parameter-input{display:inline-block;width:auto;height:24px;border:0;margin:0;padding:0}.advancedSearchBox .search-parameter-input:focus{box-shadow:none;outline:0}.advancedSearchBox .search-parameter-suggestions{cursor:auto;display:block}.advancedSearchBox .search-parameter-suggestions .title{display:block;float:left;height:25px;margin:7px 7px 0 0;background-color:transparent;color:#888;font-weight:700;padding:0 5px;font-size:14px;line-height:25px}.advancedSearchBox .search-parameter-suggestions .search-parameter{cursor:pointer;background-color:#bdbdbd;color:#fff}
\ No newline at end of file
diff --git a/dist/angular-advanced-searchbox.min.js b/dist/angular-advanced-searchbox.min.js
index 6ee2321..8aabe92 100644
--- a/dist/angular-advanced-searchbox.min.js
+++ b/dist/angular-advanced-searchbox.min.js
@@ -1,7 +1,12 @@
 /*! 
- * angular-advanced-searchbox v3.0.0
- * https://github.com/dnauck/angular-advanced-searchbox
- * Copyright (c) 2016 Nauck IT KG http://www.nauck-it.de/
+ * angular-advanced-searchbox v3.0.4
+ * https://github.com/marchrius/angular-advanced-searchbox
+ * Copyright (c) 2018 Nauck IT KG http://www.nauck-it.de/
+ * Contributors
+ * - Matteo Gaggiano <m.gaggiano@marchirus.org> (http://www.marchrius.org/)
+ * Maintainers
+ * - Matteo Gaggiano <m.gaggiano@marchirus.org> (http://www.marchrius.org/)
  * License: MIT
  */
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\ No newline at end of file
+
+!function(){"use strict";angular.module("angular-advanced-searchbox",[]).directive("nitAdvancedSearchbox",function(){return{restrict:"E",scope:{model:"=ngModel",parameters:"=",parametersLabel:"@",parametersDisplayLimit:"=?",placeholder:"@",trashIconClass:"@",searchIconClass:"@",plusIconClass:"@",searchThrottleTime:"=?"},replace:!0,templateUrl:function(e,a){return a.templateUrl||"angular-advanced-searchbox.html"},controller:["$scope","$attrs","$element","$timeout","$filter","setFocusFor",function(x,e,a,i,P,t){function k(e){return e}var n;x.trashIconClass=x.trashIconClass||"glyphicon glyphicon-trash",x.searchIconClass=x.searchIconClass||"glyphicon glyphicon-search",x.plusIconClass=x.plusIconClass||"glyphicon glyphicon-plus",x.parametersLabel=x.parametersLabel||"Parameter Suggestions",x.parametersDisplayLimit=x.parametersDisplayLimit||8,x.placeholder=x.placeholder||"Search ...",x.searchThrottleTime=x.searchThrottleTime||1e3,x.searchParams=[],x.searchQuery="",x.setFocusFor=t;var 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\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..77d4204
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1720 @@
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+      "resolved": "https://registry.npmjs.org/upper-case-first/-/upper-case-first-1.1.2.tgz",
+      "integrity": "sha1-XXm+3P8UQZUY/S7bCgUHybaFkRU=",
+      "dev": true,
+      "requires": {
+        "upper-case": "1.1.3"
+      }
+    },
+    "uri-path": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/uri-path/-/uri-path-1.0.0.tgz",
+      "integrity": "sha1-l0fwGDWJM8Md4PzP2C0TjmcmLjI=",
+      "dev": true
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
+    },
+    "validate-npm-package-license": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.3.tgz",
+      "integrity": "sha512-63ZOUnL4SIXj4L0NixR3L1lcjO38crAbgrTpl28t8jjrfuiOBL5Iygm+60qPs/KsZGzPNg6Smnc/oY16QTjF0g==",
+      "dev": true,
+      "requires": {
+        "spdx-correct": "3.0.0",
+        "spdx-expression-parse": "3.0.0"
+      }
+    },
+    "which": {
+      "version": "1.2.14",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.2.14.tgz",
+      "integrity": "sha1-mofEN48D6CfOyvGs31bHNsAcFOU=",
+      "dev": true,
+      "requires": {
+        "isexe": "2.0.0"
+      }
+    },
+    "window-size": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
+      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "xml-char-classes": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/xml-char-classes/-/xml-char-classes-1.0.0.tgz",
+      "integrity": "sha1-ZGV4SKIP/F31g6Qq2KJ3tFErvE0=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "3.10.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
+      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
+      "dev": true,
+      "requires": {
+        "camelcase": "1.2.1",
+        "cliui": "2.1.0",
+        "decamelize": "1.2.0",
+        "window-size": "0.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
+          "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
+          "dev": true
+        }
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index 6871408..b25ac7f 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,11 @@
 {
   "name": "angular-advanced-searchbox",
-  "version": "3.0.0",
+  "version": "3.0.4",
   "description": "A directive for AngularJS providing a advanced visual search box",
   "main": "dist/angular-advanced-searchbox-tpls.js",
   "repository": {
     "type": "git",
-    "url": "https://github.com/dnauck/angular-advanced-searchbox"
+    "url": "https://github.com/marchrius/angular-advanced-searchbox"
   },
   "keywords": [
     "search",
@@ -16,29 +16,36 @@
     "name": "Nauck IT KG",
     "url": "http://www.nauck-it.de/"
   },
+  "maintainers": [
+    {
+      "name": "Matteo Gaggiano",
+      "email": "m.gaggiano@marchirus.org",
+      "url": "http://www.marchrius.org/"
+    }
+  ],
   "contributors": [
     {
-      "name": "Daniel Nauck",
-      "email": "d.nauck@nauck-it.de",
-      "url": "http://www.nauck-it.de/"
+      "name": "Matteo Gaggiano",
+      "email": "m.gaggiano@marchirus.org",
+      "url": "http://www.marchrius.org/"
     }
   ],
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/dnauck/angular-advanced-searchbox/issues"
+    "url": "https://github.com/marchrius/angular-advanced-searchbox/issues"
   },
-  "homepage": "https://github.com/dnauck/angular-advanced-searchbox",
+  "homepage": "https://github.com/marchrius/angular-advanced-searchbox",
   "devDependencies": {
-    "bower": "^1.3.12",
-    "grunt": "^0.4.5",
-    "grunt-angular-templates": "^0.5.7",
-    "grunt-bump": "^0.1.0",
-    "grunt-contrib-clean": "^0.6.0",
-    "grunt-contrib-concat": "^0.5.0",
-    "grunt-contrib-copy": "^0.7.0",
-    "grunt-contrib-cssmin": "^0.10.0",
-    "grunt-contrib-jshint": "^0.10.0",
-    "grunt-contrib-uglify": "^0.6.0"
+    "bower": "^1.8.2",
+    "grunt": "^1.0.2",
+    "grunt-angular-templates": "^1.1.0",
+    "grunt-bump": "^0.8.0",
+    "grunt-contrib-clean": "^1.1.0",
+    "grunt-contrib-concat": "^1.0.1",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-cssmin": "^2.2.1",
+    "grunt-contrib-jshint": "^1.1.0",
+    "grunt-contrib-uglify": "^3.3.0"
   },
   "scripts": {
     "postinstall": "bower install"
diff --git a/src/angular-advanced-searchbox.html b/src/angular-advanced-searchbox.html
index 8210ce2..bf9581b 100644
--- a/src/angular-advanced-searchbox.html
+++ b/src/angular-advanced-searchbox.html
@@ -1,26 +1,27 @@
 <div class="advancedSearchBox" ng-class="{active:focus}" ng-init="focus = false" ng-click="!focus ? setFocusFor('searchbox') : null">
-    <span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon glyphicon glyphicon-search"></span>
+    <span ng-show="searchParams.length < 1 && searchQuery.length === 0" class="search-icon {{searchIconClass}}"></span>
     <a ng-href="" ng-show="searchParams.length > 0 || searchQuery.length > 0" ng-click="removeAll()" role="button">
-        <span class="remove-all-icon glyphicon glyphicon-trash"></span>
+        <span class="remove-all-icon {{trashIconClass}}"></span>
     </a>
     <div>
         <div class="search-parameter" ng-repeat="searchParam in searchParams">
             <a ng-href="" ng-click="removeSearchParam($index)" role="button">
-                <span class="remove glyphicon glyphicon-trash"></span>
+                <span class="remove {{trashIconClass}}"></span>
             </a>
-            <div class="key" data-key="{{searchParam.key}}" ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div>
+            <div class="key" data-nit-key="{{searchParam.key}}" ng-click="enterEditMode($event, $index)">{{searchParam.name}}:</div>
             <div class="value">
-                <span ng-show="!searchParam.editMode" ng-click="enterEditMode($event, $index)">{{searchParam.value}}</span>
+                <span ng-show="!searchParam.editMode" ng-click="enterEditMode($event, $index)">{{searchParam.$$view.viewValue || searchParam.$$view.value}}</span>
                 <input name="value"
                        type="{{searchParam.type}}"
                        nit-auto-size-input
                        set-focus-on="{{'searchParam:' + searchParam.key}}"
                        ng-keydown="keydown($event, $index)"
+                       ng-click="enterEditMode($event, $index)"
                        ng-blur="leaveEditMode($event, $index)"
                        ng-show="searchParam.editMode"
                        ng-change="searchParam.restrictToSuggestedValues !== true ? searchParamValueChanged(searchParam) : null"
                        ng-model="searchParam.value"
-                       uib-typeahead="suggestedValue for suggestedValue in searchParam.suggestedValues | filter:$viewValue"
+                       uib-typeahead="sv | flattenObject:searchParam.viewKey as sv | flattenObject:searchParam.viewValue for sv in searchParam.suggestedValues | filter:$viewValue"
                        typeahead-min-length="0"
                        typeahead-on-select="searchParamTypeaheadOnSelect($item, searchParam)"
                        typeahead-editable="searchParam.restrictToSuggestedValues !== true"
@@ -48,7 +49,7 @@
         <span class="search-parameter" ng-repeat="param in parameters | filter:isUnsedParameter | limitTo:parametersDisplayLimit" 
           data-key="{{param.key}}"
           ng-mousedown="addSearchParam(param)">
-          {{param.name}} <i ng-class="{'glyphicon glyphicon-plus': param.allowMultiple}"></i>
+          {{param.name}} <i ng-class="{ plusIconClass: param.allowMultiple}"></i>
         </span>
     </div>
 </div>
\ No newline at end of file
diff --git a/src/angular-advanced-searchbox.js b/src/angular-advanced-searchbox.js
index 227c295..0544bd8 100644
--- a/src/angular-advanced-searchbox.js
+++ b/src/angular-advanced-searchbox.js
@@ -20,6 +20,9 @@ angular.module('angular-advanced-searchbox', [])
                 parametersLabel: '@',
                 parametersDisplayLimit: '=?',
                 placeholder: '@',
+                trashIconClass: '@',
+                searchIconClass: '@',
+                plusIconClass: '@',
                 searchThrottleTime: '=?'
             },
             replace: true,
@@ -30,6 +33,14 @@ angular.module('angular-advanced-searchbox', [])
                 '$scope', '$attrs', '$element', '$timeout', '$filter', 'setFocusFor',
                 function ($scope, $attrs, $element, $timeout, $filter, setFocusFor) {
 
+                    $scope.trashIconClass = $scope.trashIconClass || 'glyphicon glyphicon-trash';
+                    $scope.searchIconClass = $scope.searchIconClass || 'glyphicon glyphicon-search';
+                    $scope.plusIconClass = $scope.plusIconClass || 'glyphicon glyphicon-plus';
+
+                    function returnAsIs(arg0) {
+                        return arg0;
+                    }
+
                     $scope.parametersLabel = $scope.parametersLabel || 'Parameter Suggestions';
                     $scope.parametersDisplayLimit = $scope.parametersDisplayLimit || 8;
                     $scope.placeholder = $scope.placeholder || 'Search ...';
@@ -165,6 +176,8 @@ angular.module('angular-advanced-searchbox', [])
                             $scope.searchParams.push(
                                 {
                                     key: searchParam.key,
+                                    viewKey:  searchParam.viewKey,
+                                    viewValue:  searchParam.viewValue,
                                     name: searchParam.name,
                                     type: searchParam.type || 'text',
                                     placeholder: searchParam.placeholder,
@@ -311,8 +324,52 @@ angular.module('angular-advanced-searchbox', [])
 
                         searchThrottleTimer = $timeout(function () {
                             angular.forEach(changeBuffer, function (change) {
-                                var searchParam = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
-                                if(searchParam && searchParam.allowMultiple){
+                                var searchParam = $filter('filter')($scope.searchParams, function (param) { return param.key === key; })[0];
+                                var parameter = $filter('filter')($scope.parameters, function (param) { return param.key === key; })[0];
+                                var viewKeyKey = 'key', viewKey, viewValueKey = 'value', viewValue;
+                                // as Object is related to model and not to configuration
+                                var asObject = parameter && parameter.asObject === true;
+                                var isObject = angular.isObject(change.value);
+                                var isDefined = angular.isDefined(change.value);
+                                var isQueryMode = change.key === 'query' && angular.isUndefined(parameter);
+                                var keyTransFn = !isQueryMode && parameter.keyTransformer && angular.isFunction(parameter.keyTransformer) ? parameter.keyTransformer : returnAsIs;
+                                var valueTransFn = !isQueryMode && parameter.valueTransformer && angular.isFunction(parameter.valueTransformer) ? parameter.valueTransformer : returnAsIs;
+                                var viewKeyTransFn = !isQueryMode && parameter.viewKeyTransformer && angular.isFunction(parameter.viewKeyTransformer) ? parameter.viewKeyTransformer : returnAsIs;
+                                var viewValueTransFn = !isQueryMode && parameter.viewValueTransformer && angular.isFunction(parameter.viewValueTransformer) ? parameter.viewValueTransformer : returnAsIs;
+
+                                var value = change.value;
+                                
+                                // activate only if not query mode
+                                if (!isQueryMode) {
+                                    if (isDefined) {
+                                        if (isObject) {
+                                            viewKeyKey = parameter.viewKey;
+                                            viewValueKey = parameter.viewValue;
+                                            viewValue = value[viewValueKey];
+                                            viewKey = value[viewKeyKey];
+                                            value = asObject ? value : value[viewKeyKey];
+                                        } else {
+                                            value = asObject ? { value: value } : value;
+                                        }
+                                    }
+
+                                    var transformValue = value;
+                                    var transformKey = key;
+                                    var transformViewKey = viewKey;
+                                    var transformViewValue = viewValue;
+
+                                    key = keyTransFn(transformKey);
+                                    value = valueTransFn(transformValue);
+                                    viewKey = viewKeyTransFn(transformViewKey);
+                                    viewValue = viewValueTransFn(transformViewValue);
+
+                                    // restore change model with new properties
+                                    change.value = value;
+                                    change.key = key;
+                                }
+                                
+
+                                if(parameter && parameter.allowMultiple) {
                                     if(!angular.isArray($scope.model[change.key]))
                                         $scope.model[change.key] = [];
 
@@ -329,6 +386,15 @@ angular.module('angular-advanced-searchbox', [])
                                     else
                                         $scope.model[change.key] = change.value;
                                 }
+
+                                if (searchParam) {
+                                    searchParam.$$view = {
+                                        key: key,
+                                        value: value,
+                                        viewKey: viewKeyKey,
+                                        viewValue: viewValue
+                                    };
+                                }
                             });
 
                             changeBuffer.length = 0;
@@ -364,6 +430,14 @@ angular.module('angular-advanced-searchbox', [])
             ]
         };
     })
+    .filter('flattenObject', [
+        function() {
+            return function(value, key) {
+                // suggestedValue[searchParam.viewKey] as suggestedValue[searchParam.viewValue] for suggestedValue in searchParam.suggestedValues | filter:$viewValue
+                return angular.isObject(value) ? value[key] : value;
+            };
+        }
+    ])
     .directive('setFocusOn', [
         function() {
             return {