CREATING A PROJECTED ISOMETRIC VIEW OF A SECTION

I see an older string from 2009, but it's still unclear (to me at least)...so lets freshen this up just a bit....

2009 string:

I've a section view in "plan view" of a weldment assy (some 30+ parts)...I would like to "project" an Isometric View of this section....

When I RT Click the section view, select "ISOMETRIC SECTION VIEW", I get an error message that states it can't be done (ref attached image)....I swear I've done this once in SW before, but maybe that's just the age (I know it can be done in Inventor)...

Please advise!

Thanks in advance,

Jess

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