Ceiling locks?

[m_cahoon14336]

I know walls can be locked in place? Is there a way to lock a reflected ceiling in place?

[Dimitri Harvalias]

If you created your ceiling by selecting a room it will move with walls defining that room. If you sketched the ceiling the lines work the same way other lines in sketch mode behave and you can lock them to existing geometry or dimension them the lock their locations.