Mark all as Read (except...)

problem
1

When I got behind on my feeds, I used to use the Mark All as Read for All Stories, set the slider to “Except the last 3 days”, and consign older items to the Stygian depths while saving newer items for reading. It seems like recently that slider has been eliminated, and now it’s an all-or-nothing feature. Am I missing a new way to perform this operation?

Thanks!

2

I’ve improved the slider so can you post a screenshot of what you’re looking at?