While doing the instruction pics I realized that I needed a way to make the extended walls for the shrine and platform attach and detach for the fold flat version.
So I started with some test to slot in the expanded elements.

I saw that two slots are better as they hold and align the attaching wall better.
I then changed the walls template to this. I made the bottom of the slot tab so that it would kind of press against the wall by itself once you insert it and press it down.

Now I can make the instructions build! :-)
Happy building,
Chris