Lock buildables on the selected layer?

Idk if this is even possible, but: When building multi-layer-stuff it happens very often that the buildable i want to place gets accidentally placed on a lower level than the one i am currently looking at. Granted, this has something to with precise placement but becomes super fiddly in some situations and is not really comfortable. Would it be possible to lock the buildable on the current selected layer (if in layer-mode at least)? I can see that this might make some other building scenarios more complicated though (need to switch layer more often).