Here is quicky video I made using a free screen recorder. It shows me selecting the smart tool and inserting notes in the PRV. The first few clicks I didn't drag the cursor and nothing happens. But when I click and drag the cursor I can enter a note, move it up or down and change the length without releasing the mouse button. Please forgive the jerkiness of my mouse cursor. The software was free, what can I say...
If this isn't working for you then, yes, there is a problem.
http://youtu.be/p7b1ZaYFtR8