A Question About Making Levels

[Vael]

I apologize in advance if this has been solved at all, but I haven't seen the answer in the actual tutorial FG created on their Wiki.

1) How do you copy an object? Say you're making the outline of a room, and when you rotate the map to put a wall down, it isn't facing the right way. So you go to rotate it, then move it on the axis to fit with the other. Do you have to keep doing that for that object? Or can you copy the object in that position so you can just paste it to progress more quickly?

Thank you for your help!