Hi HelgeMK,
I also own an ASI071MC (not-PRO) camera and am just running Kstars/Ekos with INDI where the Stellarmate is acting as the INDI server. I update the Stellarmate to the latest set of SW (using the sw updater) in order to make sure that the INDI drivers were the latest. I can see the camera shows up nicely in KStars with the ability to control the cooling temperature. However, the ASI071 has an anti-dew heater and I am not seeing a control for this on any of the tabs. I would have expected it to be on the "main control" tab along with the cooling control?