<<<Nord Invasion Map Making Guide>>> Updated as of: 14 April 2012

[Perception]

You need to window the game (alt+enter) and enable the editor. (str+e)
X-Y-Z for turning objects around the X-Y-Z axis (R resets to standard), G for moving parallel to the ground, T for moving up or down, B for increasing the size.
It actually is one of easier editors, just takes some time.