Trying to set up duct connectors flow but I can't propagate it no mather which combination i use. I have a supply slot diffuser which has 2 inlet connections (or 1 if I choose so). Like I said I tried various combination (preset-in) and also system with 0.5 factor because I want to "split" flow between those two connectors. For example 100m3/h to each connector so the total supply air should be 200 m3/h.
I am attaching original family prior to my modifications if someone can check. Notice that in the original family the left connector is a return air connector which doesn't make sense.