Why the heck can't I customize from more-info?

The more-info popup already provides some customization capability for all entities (friendly name, icon and id). It would be great if you could also do full customization of that entity from there. Essentially just take this UI:

And show it in the more-info popup when the user goes to edit the entity. It would be a lot easier then digging through the menus and that super long drop-down to find the entity you want to customize.