Help?? Can't seem to gain control of outputs on HD500 like I use to on XTLive.

Config:

DT50 212 plugged into HD500 via L6Link.

RCF ART310 Powered Monitor plugged into Right 1/4inch Out.

Requirement:

In a single HD500 patch, have ONLY DT50 audiable and RCF muted. Then on another path have the opposite. This is so I can put the accoustic, banjo etc of the JTVariax out to the RCF while muting the DT50 and then have the opposite when I play the other electric guitar models. Like to keep the L6Link in the mix so I can control the DT50.