I am trying to create a layout book that includes a site plan (just landscaping and exterior walls). I try to adjust the site plan layer combination to just the elements I want, but it seems that once I place the floor plan w/ landscaping on a layout, it automatically goes as one huge item onto the reference layer, so I can't individually adjust what elements I want (so all the interior walls, dims, furn, etc. show up). How can I get just the walls and landscaping to show on the layout? thanks in advance.