RPM is always added. There's no difference to the sensor for "no RPM sensor attached" vs. "motor is not running." So just remove RPM. Removing it will remove RPM from other screens.
I'm sorry, I meant to say to remove both Vario and Altitude. When it auto-configs, it looks for the vario to be there. If it is, it stops. If it isn't, it adds both Vario and Altimeter.
My bad.
Andy