I don’t understand. Is this an experimental feature? How do you do this?

Glad I could help.

Create a template sensor that is the opposite value of the door sensor and include that one in your auto entities instead of the door one.

This may be a dumb question, but how did you get the image to appear while still being a link post?

This looks great! I used Sync on Android and this looks similar. Hope to see an Android build soon.