Hi, Sdglight!
Did you enable , external visualisation in the "view' menu?
The fixture numbers used by the external visualization software can be specified in the Advanced tab of the Projection Zones dialog box.
Did you give the fixture number in the Advanced tab of the Projection Zones dialog box?
I also recommend watching this video .
Even though this video deals with working with Realizzer, the principles of working are the same as with any other visualization software.