Celestron Focus Motor is supported in StellarMate. It can be connected either directly to the AUX port of the mount, or via USB cable to StellarMate.
If the focuser is connected via USB, then you need to select Celestron SCT focuser driver in your equipment profile in order to control it.
Connectiong via AUX is only supported in the Celestron Nexstar/GPS drivers as explained below.
StellarMate provides two different Celestron drivers: