This should be possible without having to wrestle with the S2 style system, which isn't very good. (I have done that in the past.) Will find out as I go. ...  Though other people appear to have this already in progress, so maybe laziness will win!
But for now, I'm off to go do my max-effort squats and deadlifts workout. Oof. Let's see if I can rack pull 350lbs today!
EDIT: Didn't rack pull, instead deadlifted up to 290. Also, rack good mornings up to 275. Which was definitely an ooooooof moment. That is not a back exercise, by the way. That hits your hamstrings hard, glutes secondarily. If you're doing it right. Also, made custom-style comments less sucky. They're not great yet.