How to enter template data when customizing entities?

Configuration
1

TL;DR: Can i enter template strings into as attributes on an entity through customize?

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entity_picture_local: states.media_player.denon_avr_x2600h.attributes.entity_picture_local

Long version:
Hey everyone.
I have a denon AVR (X2600h) which is connected to home assistant through two integrations.
The denon AVR integration and the HEOS Airplay integration.

So i have two media_player entities for the same device that offer different capabilities and i would like to combine them into one card.

  • Media_Player_1: (Denon integration) offers better on / off support along with a dropdown for sound mode selection
  • Media_Player_2: (Airplay integration) offers information on what is playing (ex which radio station) along with images which make nice backgrounds.

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I am trying to pass one media players attribute as attribute to the other one as templates through the customize ui.

I dont know if i am clear enough, but if someone could point me to the right direction please?

2

Nope. Customize does not support templating.

What you want is this:

3

I looked into that, but it seems it does not support sound_mode.
Ill give it a try anyway.

Thanks