Bi-Amping Multi Speakers with Multi Channel Amps

Currently I'm Bi-Amping with a pair of MC501's (LF) and MC8207 (HF) using an MX122 processor. (500 Watts and 200 Watts. Should I be doing that?) Integrated into this Multi-Channel system, I also have a MC205. 14 channels. I would like to Bi-Amp(Tri-Amp) my Center Channel. While I have extra channels, the MX122 will only allow One Bi-Amp config within it's presets. I've contacted McIntosh and received No response LOL. Can't say I blame them. Anybody want to offer up some thoughts working with the equipment I already have. :)