This concerns the Parallels module, not parallel texts added via Add Parallel.
I would love to be able to display my user notes when in Parallels module. For example, when I open the Parallels module for Gospels, and choose, for example, #20 "The Temptation" it would be very convenient to see my user notes for Matt 4:1ff, Mark 1:12ff, Luke 4:1ff at the same time. Sure, I can manually type the three passages into a new search pane, and look at my notes sequentially, first for Matthew, Mark, and then Luke. I know I can also set up three zones, each having the respective passages and related notes. But there's something to be said for the ease of seeing notes side by side taken on parallel passages from the Parallels module.