Add Last changed to the Related Screen

[myle (StePhan McKillen (Other kiwi Here))]

What about showing the Last time something change in the Related screen

Make easyer for user to see Why something changed.

[Sir_Goodenough ((SG) WhatAreWeFixing.Today)]

Hi StePhan McKillen (Other kiwi Here),

This might help.
This also explains some of the problems trying to do this…

Trigger based template sensor to retrieve last change of an entity

To retrieve the date and time an entity had it last change, there is a last_changed property in the state object. However, after a restart of Home Assistant, this will be reset to the time HA started. Note: The configuration below will only store nominal state changes, so it will not store state changes from or to unavailable or unknown. So it can’t be used to track when an entity became unavailable. You could remove the not_to: part to also store those changes, however, you won’t be able to …