Extend Entity Card pop-up with related entities / actions

When I click on a entity of my dashboard, I configured it to show “more info” - the entity details appear as a pop-up.
It would be great, if it was possible to extend the pop-up with additional entites, actions etc.

In my example there is the status of the grage door.
It would be great, if the pop-up would also allow me to “Open / Close” the Garage door; and to see some other entity values such as temperature / lux etc.

When building a dashboard why not using a subview?

The “more-info” pop-up is standardized for a single entity and is not made for these custom issues. On top-right corner you can get additional relative entity informations.