I am constantly making temporary Harmony PB's so I can easily compare verses to find parallels, evaluate proposed typologies, note differences in emphasis when a story is duplicated etc. I would often find it useful to be able to replace these PB's with a simple Passage list where
1 Pet. 3:20–22, Gen. 1:2 means show as a vertical list just as it does now
and
1 Pet. 3:20–22 | Gen. 1:2 means show them beside each other (multi-column format) as if I'd done a Harmony PB