Is there an anim box tutorial for making something like Jaydee’s boxes or the paintings?

Every time I take pictures, I discover more and more animations haven’t been made for boxes (mostly some reactions sims do to certain situations, which makes sense, I guess) so I was poking around Jaydee’s BV box and it looks like there is a structure that lets it use in-game anims w/o need for custom made ones, but I can’t seem to find something that goes more in-depth how a box is made?