Place objects in a close building always is a pain, but there is something I hate more than that; placing markers, like the lights, I've never get some light exactly where I want to, and it lays to me, when I think it is close to place I want to, it is really far in test mode, another thing I hate about, is them following me araund the map, so confuse me, I really do know where they are really placed; why the markers (even in marker mode) does not remain quiets in their position, so even if I'm in the other side of the map, I always know where they are, that might help for fine tune.
3com
Laptop: Lenovo - Intel(R) Celeron(R) CPU 1005M @ 1.90GHz
OS: Windows 10 (64) - Ram: 4 gb - Hd: 283 gb - Video card: Intel(R) HD Graphics