Great minds…eh? I bought some sticky back velcro and cut 4 squares to stick the sections together. It seems to stick well enough so far and it is not a new pad. Only thing I'm not fond of is the small overlap.
I should have cut the pad into 2 and 10 or 4 and 8 sections. Then I would have a little sit pad. I suppose I could experiment and buy a new pad once I find the best set-up.

