I want to create a report with a process variable that is a CDT defined by a custom smart node.

I can edit from process instance and the pv section is there. You can edit the dashboard's channel and the expression is there. From that I cannot see the pv section, but I can see the expression references them and I can add/modify the columns that are pvs. That's the confusion. It works, not sure it's a solution for the original problem. I did see another post about creating a process where the start form contains a paging grid. Add the process launcher channel to page. I'm trying that approach next.