Editing Tips In 3D Mode:
To activate 3D mode either click the F3 Key or 3D box on the upper menu or Right Click the map area and select View Mode and click 3D.
In 3D view highlight object (building, vehicle, etc.) While holding Left-Ctrl and Num Pad (With-Lock On) you are able to rotate, move object with the keys and see the results in 3D mode.
7 Rotates object left
9 Rotates object right
8 Moves Object Forward
2 Moves Object Backwards
To Raise or Lower Object use plus and minus (+-) on Num Pad (This is z Value)
Pressing plus and minus will raise and lower object in small degrees.
Holding Ctrl will raise and lower in larger degrees.
You can rotate, move, etc multiple items by clicking and highlighting several items at once.