I think it would be cool, (if it could be done without damaging the model), to take the saucer apart in order to put some little 1:350 scale Enterprise crew figures on the bridge. It would give it some life.
Yeah not sure if it's possible. Again those plugs are hard plastic and have decals on some of them as well. (The NCC 1701) So you would be compromising them as well. Best to just leave it alone...