I created multiple BBCodes (s, spoiler, bar, table, nc, nr) in the APC in that order, but when I go to post the BBCode buttons appear in a different order, in my case (s, spoiler, nc, nr, bar, table.)

Recommend allowing the admin of the site to define how the user BBCodes appear when posting. Adding the ability to move the item order just like the forums and then making sure that those items display in the same way as they are sorted would work.