Dear Friend,
I create the script for the shared parameter in the family but when combining the list it shows the null.
Kindly give some solutions about the shared parameter dynamo script.
Try just using the node inztead of list.combine. I recognize this as one of my tutorials and know erfajo changed this nodes behavior since (condense inputs). If i recall correctly condense to false, longest lacing and connect the three inputs as lists should do it.