If I used Fortify to Paste a Building in and it is way up in the Air. What do I Enter in Height to bring it down to the ground?

you will have to use /undo to remove it first. The use /past name height -number . you will have to adjust that height num,ber as needed to get it where you want it.

Ya thanks. Figured out the Problem. Was kinda too close to a rock cliff I guess. And it was using the top of the cliff as the spawning height. But thank you for your help and thank you for your Response!