Pagination is still greyed out

I want to add multiple master pages to my form (one in portrait, one in landscape).  I thought this would be easy.  I am pretty new to Livecycle but I thought using the pagination settings would be the way to do it.  Unfortunately the settings on the pagination pallet are always greyed out.  I've looked around on other discussions here and the answer seems to be to set the subforms to flowed.  I've done that to all the subforms on my first page (event the tables that didn't need it) and the pagination settings for the master pages are still greyed out.  Is there something I am missing here?