Alphabetizing Outline View

I have a file/topic/note (a first level (?) line in outline view) with 20+ lines indented under it. I would like to alphabetize those 20+ lines and, if possible, have new additions automatically appear alphabetically.
Is this possible, or is the only option to drag/drop?
TY

Yes; see the sort inspector.

Thank you

More info on container sorting (‘alphabetising’):