Is there a way to open the File Save dialog for a dynamic playlist?

Our users have the option of saving a list containing frequently-used station media. For reasons not relevant to my question, I want to pass the items through a filter before they hit the file. I do not want to filter the source list in situ.

I’m able to instantiate a dynamic list and copy the items I want to be save into it. However I can’t see how I might associate the File Save dialog with the dynamic list. The filename and location of the saved file must be determined by the user.

Any suggestions?