If you use the Output To Amp 1 & 2 1/4" outputs you could accomplish this.

Each preset allows you to have an independent output level for each Output To Amp, including MUTE. You could put a different amp on each output. You could use the MUTE for the presets you don't want going to particular amp. You set the output level the same to balance it to each amp - or you can mix 'n' match the output levels to create whatever blend you desire.

I suspect there are other options - but that is one.