Hi Robert,
There is no global "feedback disable", so you need to organize that yourself. By defining Software State Set "Feedback" with "Enabled/Disabled" states. If feedback is done my usual way, so in monitors only, you can add "Feedback:Enabled" conditions to monitors which do the feedback. Otherwise add it to every related MIDI Action. "Reset All Monitors" after changing from Disable to Enable will trigger all monitors and so send all feedback messages. Again, if you send something outside usual monitors you need to re-send explicitly.
BTW when destination device is a kind of the same, "Cooperation" feature allow mimic MIDI messages from the second instance in the first (master) and so just one preset can be constructed for both sets of MIDI ports.
Alexey.