I suspect this has been discussed before but couldn't find it as a sticky topic..
I am using an older CPC1100 with a NexSTar controller. I got a new motorized focuser from Celestron to make it easier for newbies to focus scope (I teach with it) without vibrations. While I go the focuser to be controlled with the old Focus Motor Utiliy from Celestron via a PC there's no way to get the NexStar HC to show the 'focus' pull down despite firmware upgrades to HC and MC.
Celestron documents state only NexStar+ and StarSense work with the HC and the Focus motor. They specifically don't mention NexStar.
So an obvious solution is to upgarde the HC to NexStar+. Does that work? My retailer at Orange County Telescopes is asking Celestron. But no word yet.