How are the triangles (for subtopics?) created? deleted?

TaskPaper
1

Hmm, I think I saw them, but now not… Did I imagine them?

Eleanor

2

They are created automatically when you tab indent some text under some other text.

I think if you watch the first “Getting Started with TaskPaper” screencast it will clear things up for you. You can find that here:

https://guide.taskpaper.com/screencasts/

Jesse