Chronological order of talks in study guide

Is there a way to reverse the order of the talks in the “President Oaks” study guide which is prepopulated on gospel library? I’d like to be able to listen automatically from oldest to newest without having to toggle back to the menu page (where the check marks appear). Currently, it only auto-plays from most recent to oldest, as far as I can tell.

There isn't a direct way to do this with study plans, unfortunately (I assume by "study guide" you mean "study plan"). However, a potential workaround is to create a playlist, and add each talk (one by one) to the playlist. Items in a playlist can be reordered.