Nested loop or saving state?

I’d like to create this list of PDFs – under the 2025 bulletins heading – by using DisplayPosts to loop through the corresponding attachments (from the Media Library). The issue is that the typically two or three links per Sunday are offset by a blank line before and after. I could accomplish that either through nesting loops – for date = first sunday through last sunday for service in date.services <print text and link for service.bulletin> end service end date or by previousSundayDate = "xxx" for service = first service of the year through last service of the year thisSundayDate = service.SundayDate if previousSundayDate <> thisSundayDate <print offset> <print text and link for service.bulletin> previousSundaydate = thisSundayDate end service How do I accomplish either with DisplayPosts? Part of the answer may lie in https://displayposts.com/2019/01/04/enable-display-posts-within-post-listing/ but the way I read that I would have to create a bunch of posts, one for each Sunday, using DisplayPosts to loop through the Bulletins for that Sunday, and then loop through the bunch of posts. Seems cumbersome, since I don’t need the individual posts, one for each Sunday. The page I need help with: [ log in to see the link]