@M R You need to connect the output port to some other object outside of the process group the output port is in. For example, I have a output port in a process group In the level above the process group, if I hover the cursor over the process group an icon appears Now, I left click, hold and drag the cursor over to a processor, funnel or another process group with an input port, another window will pop up with the name of the output port Select ADD and then you'll see a connection to the object, if you go back into the original process group, you'll see the output port is ready to be started and there you go.
... View more
