I've been experimenting with this lately. Clicking the save button to the right of p/b speed seems to work ok.
Updates the file in C:/Users/....../UniversalReplayer/Imports
Also been clicking the 2nd star to the right of the note box, and then checking the Highlight option, (top right of sshot). This then steps through all the noted hands using the green > button, and tags them in the ribbon display as well.
Detatchable note box would be really nice!