I have this paypal plugin installed on my site and I want to insert add_note so that the user can add a note to his order.

I have tried

[paypal_button type="buynow" name="Item 1" amount="20" add_note="yes"]

[paypal_button type="buynow" name="Item 1="20"] [add_note="yes"]
but i havent seen the note yet. I was wondering does this note show up after the user has logged in? I can't see because I cant use the same paypal address to purchase my product. If the note does show up after login which code would most likely be correct?

I did try asking in the plugins forum but haven't received a response yet.