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A large assembly where I need to find all parts that are not solid.
Thanks
Click on the binoculars symbol (the search tool) in the bottom right.
Then set it to look for surface, look by quilt, with the rule set to all. Click find now, and it will find all surfaces in the model.
You can also set it to look for solid geometry.
You can switch to wire frame view. Default color settings show quilt edges in purple.