These options [tools] are not available, because there are no conditions in the current model that would allow them to calculate, such as another component model being present.
Design Manager Streetscape Ltd
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I would assume that command would only work in the assembly environment with multiple parts. I would be amaized if it works with sheet metal. Likely two standard parts would be needed for an intersection.
Multibody modeling is one of the best "conceptual" modeling method.
Here is a short video about this. I was doing a sm cover, but after this I can manufacture from 3 pieces... This is not a real example... But I have some...
I hope this will be useful!