Hi Ben and all.
The duplicate workflow does work but i am still experiencing a slight error. I have 3 groups in my test file and the first changes the material fine, but the other two do not. They all seem to be assessed as part of the duplicate and rename procedure. Version 0.9.1 Duplicate and Change Parameter in Group.dyn (27.2 KB)
Ah, so the problem lies with the duplicate node, it only duplicates the first item fed into it and so if i have created group 1 (a,b,c) and group 2 (a,b,c) the group 2 duplicates are duplicates of the group 1 type. Any thoughts?