I have imported sup files with no issue onto my 12 strip ray tree and onto my pixel trees without issue.
This year I was planning on adding 4 arches, so I created a model using the arch model and specified 4 arches each with 25 pixels. Under that model I created 4 sub models: Arch 1 (nodes 1-25), Arch 2 (nodes 26-50), Arch 3 (nodes 51-75), and Arch 4 (nodes 76-100).
Now here is where it gets interesting....
I can import the sup file onto the ARCHES model and it works fine, but I was looking to try and import onto the sub models one at a time to see the effect. The sub models do not show up in list when trying to do an import.
Using an LMS file and doing an import works as it should and I can see the models and click deeper into the sub models to complete the mappings and import.
Any particular reason that sub models will not appear as an option for SUP import?