We have two "movers" - ellipsoidal cannon lights. I would like to know if a standard USB Track Ball mouse can be used to control the movers.
Yes. Any USB pointing device can be used, simply click or touch on the "Trackball Pan/Tilt" button in Params to toggle it on and off.
- Be sure to disable it when you've finished focusing a light, so you don't knock the ball later on by mistake and go flying!
On CS20 you might want a USB hub so you can plug in a USB stick at the same time as the trackball.