When using FPP connect to upload the models for one FPP instance, it will upload all of the models in xLights, not just the ones attached to that FPP. The same thing applies for the UDP. It will export all of the E1.31 channel outputs for ALL universes in xLights, not limit it to the selected FPP instance. It also will enable the E1.31 output and the BBB Strings (on a PocketBeagle) even though it is using LED Panels.
I don't know if this is by design.