I thought I knew how to do this but I don't.
I have used the Portfolio Editor to edit the standard Portfolio Performance report so that it lists my funds in the report according to asset classes and subclasses. I've done that with one of my global overall portfolios; my sort of "all in" portfolio. I've saved that portfolio with that report format. I've even memorized that version of the Portfolio Performance report.
How do I get all the other portfolios also to use that particular Portfolio Performance report format, with the groupings by asset classes and subclasses? All I can think of is to use the Portfolio Editor to recreate the format I want, one portfolio at a time!
There has to be a better way, but I can't find it.