I'm not Pat, but I can answer your question:
Bolers came with at least three (that I know of) front bench styles:
1) has just the bench all the way across with no Porta-potti cutout on the "ankle" side (this one was in older Bolers that don't have the extra "box" in the frame to accommodate the Porta-potti niche).
2) is also a couch platform that runs all the way across on top. However, this one has a Porta-potti storage cutout on the "ankle" side (this one is like the Scamp
3) is like Pat's. It has the Porta-potti niche on the "ankle" side, and also the bench top has a pre-formed cut-out. The cut-out has molded in "cleats" around in a U-shape and then a board is there to cover over the niche (which, if you lifted it up, would be like a table top in shape). Here is another photo of Type 3 (Cyndi's); in this one she has kept the bunk/back in place: