ampli_entity volume up not working as expected

[ibelic]

Hi,
my TV is connected via optical connection to Russound multiroom sound amplifier.
When I change config to route volume up button to that 'media player' (ampli_entity: media_player.dnevna) it works but it turns up (or down) volume by 10 steps.
Can you add additional configuration option like ampli_step as decimal - I assume you send 1 to media player, and for my device it seems 0.1 would work properly.
Thank you in advance!
Regards,
Ivan

[d13g0m0nt3s]

Same problem here with and lg sound bar