I have a workaround that I've been using but admittedly it's quite a pain in the *ss! I will put my notes in a table with two columns and a bunch of rows. I will write my notes in the left column, and when it's time to go back and review to add notes, i will add my notes in the right column. I will also isolate the paragraph with the note in the right column to its own row and move the rest of the note down into another row...this gets repeated until i reach the end.
I know this is a pain and it is! When I don't want to deal with this, I just use Google Docs and have been doing that lately.
Additionally, if I clip an article into a note, I will move the entire article into a table, the steps described above.
It's been four years since this feature was requested and still no indication that this feature is being worked on.