Rotating objects along Z axsis

[DemonFire 10]

So I can change the height and twist them around left and right. But I'm trying to place objects upside down. How do I rotate objects up and down along the Z axis?

Edited November 16, 2010 by DemonFire

[shuko 59]

http://forums.bistudio.com/showthread.php?p=1470985#post1470985

setVectorDirAndUp