Advanced pass for Prime Time Anytime

I have read several messages on here where users were looking for a Prime Time Anytime feature. Most are pretty old and I have seen lots of changes in the feature set. I have all the filtering etc set up for my test but my question is regarding the deletion of recorded programs. I am a little fuzzy on keep and limit options. But from what I can tell those setting just pertain to shows recorded using that pass and not another pass. I was wondering instead of setting a video count can it be based on when the show was recorded? Like an option to say "Keep these recordings for X days" Then when the pruner runs it deletes all recordings that are say 3 days old regardless.

Thanks so much.

There is currently no time-based keep option