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How can I export solution quantities from Patran?

Lets say I have a very large model with a large number of load cases, and I am generating envelope stress plots over various combinations of these load cases. Just making one envelope plot can take many minutes for large model. Then once I have this plot on my screen if I just make a small change to something like the title or the fringe range, the entire envelope process apparently happens again which is very time consuming and frustrating. So one way around this is to create a new result case that has the enveloped stress data in it. Then making those stress envelope plots and modifying the plot parameters is much faster. My question is, once I have generated my own result sets, either from envelope plots or other mathematical operations, is there a way to save these custom result sets to a new h5 file so I can easily load these custom results in future Patran sessions?