Modding Request: editable room 'placard' tags to go on walls

Can anyone make the clickable Von Haunt mansion signs into editable wall room tags? I mean something like the dorm/classroom name tags that go on the side next to the door, not the huge City Living apartment plaques that look like awards. The idea is that you'll be able to stick them outside dorm/apartment/class doors for that college/apartment atmosphere.

In my head, it seems like you'd be able to replace the mesh(?)/appearance of the standing sign with the mesh/appearance of a door sign like (this) or (this). That way it would still have the functionality of being able to click and 'Read' it in-game. Also in my head, you'd be able to add in the 'name book titles/summary' function when u place an item in Build/Buy mode, so once you place it, a pop-up comes up and allows you to type in your desired text. Then once you name it and close the pop up, you can place a new room tag or view the current room tag by clicking 'Read' from Live mode.

Believe me, I've tried but I am very very Blender stupid. Many thanks if anyone's willing to give this a go!