Every grid starts from variation 1 of the 18-post grid and adds the new nine, plus three rows that go up together: Couples (Reddit 1, the Date 1 hero, the TVoY reel), Siblings, and Reddit 2 to 4. Pick which row each sits on (1 is the top). Only one Reddit thread exists, so Reddit 2 to 4 repeat its cover. Newest is top left, the way the profile shows it. The two oldest posts are fixed: Toshio and Chieko bottom right, the word game beside it. Cells are 3:4, so reels lose the top and bottom of their 9:16 frame unless a custom profile crop is set when posting.