OK, found that Marlin 2.0.X has "#define TEMP_SENSOR_CHAMBER 0" included However do not know much about this Version "
Can this be upload this onto a Ramps 1.3/1.4 compatible controller, that was previously running Marlin 1.1.5.
Can this be upload this onto a Ramps 1.3/1.4 compatible controller, that was previously running Marlin 1.1.5.