I called Meridian.
It turns out that if you are using digital speakers as I am. This feature is not available. The software only allows you to set a power up volume level if you are using analog speakers.

Oh well.

Al

7.1 system 568.2 (mm installed but not used) DSP5500 L&R, DSP5500C Center, DSP33's sides and rear. Pioneer Elite PRO-620HD monitor.