Posterior definition is a function of the STO models themselves and outside the bounds of PW42 to edit. Unless there is some place that a posterior jiggle metric is hidden like the breast jiggle was, then there is no way to do that one either. If you're interested in trying to get into the art files and do some modding of your own, the instructions follow the first post to the thread. It's complicated, but possible to follow them to get access to individual art files, I've done so but can't do anything with them, largely because the hoggs that get unzipped are so huge they are difficult to find what you're looking for. PW42 - if you have any advice on how to find the swimwear skins I would love to skip the part where I keep unpacking huge files to find nothing helpful.
@TheDarkness666: I've never been able to notice no bra mode even when I max out my settings on the character creator either. And that's the one I'm most interested in! Unless, of course, someone comes up with a way to apply different jiggle settings randomly so everyone bounces out of sync, that's my tiny little wishlist. Also, if we can disable jiggle while using the floater, I'm tired of looking like gravity is perpetually winning the fight if you know what I mean.
These have all been asked and answered many times before, I'm happy to snag them so PW42 can focus on the important stuff.