Allow automation trigger to/from list

Configuration
1

It would be great to allow lists of states in automation triggers. Similar to:

platform: state
entity_id: media_player.living_room_tv
for: '0:00:10'
from: 'off'
to: 
  - 'on'
  - 'playing'
  - 'idle'

Unlike what’s stated in Why not allow a list of states in an automation trigger? this doesn’t work for me.
In fact the UI changes it to:

platform: state
entity_id: media_player.living_room_tv
for: '0:00:10'
from: 'off'
to: 'on,playing,idle'
2

This is actually already possible (how you have it in your first code block), it’s just not documented. If you use the UI automation editor, I’m guessing you’d need to use the Edit as YAML option for it to work.