That whole "element re-arrange" area could use some love, though (e.g. make a single vert operator with more options, as faces; and make faces work in edit mode, probably no more reasons to switch to object mode?). Post-release TODO, anyway. Also spotted a glitch in BLI_rand code, imho, which makes first element of an array not guarantied to be shuffled by BLI_array_randomize()... No correction though, as this might/would affect other parts of the code!