You cannot independently set up the levels etc. of each speaker in an MC system using the DSP preset controls. Even if you could, it would be a pest adjusting each one rather than using a central setup mode.

The logic of the Meridian setup is that you first calibrate the speakers in the room to give the overall balance which you require (yes, you can set the rears higher if you want). Then you use the DSP settings to adjust the individual modes to your personal preference. The latter is not system calibration.

Malcolm