Is this possible yet to be able to remove ceiling light and keep it? and install a new/old one? or is it going to happen in 4.2?

I had to "destroy" a sacred Bomb Lamp (obtained through the event long ago) in the past in our fc house, just to change it to something different. Can you only get it through the auction board for an exorbidant price now or is it available in cash shop? I haven't changed the ceiling lights in a very long time because I have an affection for them or they required some kind of quirky mat to craft. I would like to try some new ceiling lamps but keep the old.

And why can't medium houses have two ceiling lights per floor? Don't mansions have three ceiling lights per floor?

We need to be able to keep those expensive ceiling lights after uninstall.