I am using the German version, so I am not 100% sure what you mean. I assume you mean that instead of double-clicking and opening it in my PDF-reader I could use the premium-feature to annotate. I only have a "Plus-Account", so I can't do this.
I left-click the note in the list so it is marked in blue and its content (1st page of the PDF) is displayed in the window on the right side of the screen. Then I double-click that window and the PDF is opened in my PDF-reader. Then I use the features for commenting and so provided by foxit reader. On my Windows-device I then simply click "save" and everything's fine. But like I said, this does not work on my Android tablet.
BTW thx for the reply.