We have tile card functions for a lot of cards. We have sliders for light brightness, up/down controls for covers, but for media player cards we have nothing. It would be amazing if we can get things like power on/off, volume, play/pause/previous/next and input select as media player inputs.
Yeah that’s a good one. 
Fully agree, some feature are missing for media player.
Another function that is very nice on the custom: mini-media-player card is the ability to send a TTS with an input text field and a button to send to the media player. this could also become a media player tile feature…