I have a project that I have been working on and have used the Add Location function which worked to begin with but has now lost its true north orientation.
Image below shows my model with true north (which is not correct)
Or:
You can open Ruby Console (Menu >> Extension >> Developer >> Ruby Console)
and copy-paste (and hit Return) this code to set the NorthAngle of your model, substitute 10 (in degrees) with your desired value.