Amp attenuator setting represented in wizard?

I think I understand the gain setting process, but I am having trouble understanding the amp setting that appears in the wizard if you select an amp preset, right after you select the amp input sensitivity in the wizard. As I understand it, the DRPA output gain is set only in the crossover settings, so does that mean the amp control setting that appears in the wizard is a “recommended� setting for the actual amp attenuator and therefore is somewhat meaningless since we do the gain structure set up anyway? Or does changing this knob in the wizard actually change a setting within the DRPA?