Conditionalizing Master Pages in Unstructured Frame

[Trish Castin]

All,
I'm dealing with an interesting issue in Frame.  We're in Frame 10 and have a template that has four master pages: Right, Landscape, TwoColumn, and FourColumn.

For files that do not have conditional text, you can choose the proper master page, per page if necessary, and off you go.

If you have conditional text, the text moves.  Which means that text that should be on the landscape page, for example, moves to a non-landscape page.

Is there a way to conditionalize the master page setting to the associated text?  Our current implementation is to make landscape, twocolumn, and fourcolumn be separate files within the book, but this requires tweaking of book numbering and such.  

A coworker mentioned a marker that would set the master page and thought that was an option in earlier versions of Frame, but I was unable to find that.  Maybe I need to create one, and if so, how?

Thoughts?  Thanks in advance for any leads you can give me.

Trish