I have no idea. I guess in theory component can have multiple transport nodes and one executor to do what is needed, but consider an approach that works for you. I tried to do something of this sort but not sure what would solve the puzzle, and I purposely avoided doing any scripting, routing rules, etc.
Test - Believe In Yourself and Reach For The Sky.vcmx (191.8 KB)
To keep it simple, you could try to use PM components in the eCat as example. For example, this test layout is based on the inline process component. It is tedious in a way to prevent parts from coming in and waiting for parts to leave before moving the joint, but then again is a design question to me if the executor should actually be responsible for this or to just send a signal.
Test - Then Again Better To Stay Grounded.vcmx (136.7 KB)
I don’t know enough about PM, so others know better.