HedgeHog 4 enable and patch on DMX port 2.

I was able to plug in a second chain of DMX lights into the 2nd port last year.
This year I can not get them to work. Not able to find the correct help page or video I found before.

I remember having to enable the port first. then I could patch the fixtures on the proper 2nd DMX universe.

Any links, or thoughts.