When viewing the Offer Overview for a subgroup you see the Prior/Current/Upcoming Offers side by side.  Clicking the links take you to the Plan View, which you can always see under the plan list... it would be more helpful to see how the plan was setup as attached to the Current Offer. Namely, the contribution structure/amounts/settings for the plan, as I have not found a way to view the contribution setup for the prior year, after plans have moved to the Prior Offer. I resort to pulling screenshots of the Current Offer, prior to opening enrollment, to avoid having to reverse engineer the contribution setup from reports, if questions arise.