Answered my own question. Found in the manual under the heading “Effect Loops (Pink)”. The external effects unit can be used as Stomp, X, or Mod, but only one for each rig.
Before i could tweak in a desent Delay and reverb, i used my T.C G-force in the FX-LOOP. I still have it in my rack, but i try to keep my set up simple and easy..
Thank you. Excellent advice. I’m going to cart along a fail-safe backup something-or-other, in case the unpredictable happens. So I may put it to use, as an FX. That said, I think you are right on-the-money.
