A new node called "MP3Tunes Locker" will be added below the "Library" node. Expanding this will attempt to log you in, showing you a screen to enter your username and password (with options to store these values - the password is encrypted before storing). Once access has been granted the artists and albums in your locker will be displayed in the tree. Clicking on an album will show all the tracks in the album which are in your locker - these tracks are added to your library and can be played and tagged like any others, although changing the tags will not affect the tags in your locker.
If you delete one of these locker tracks in MM then it will also be deleted from your locker. In this case it is moved to the "trash" folder so you can access your locker online to undo this action. If you select library tracks, right-click and select "Send to... > MP3Tunes Locker" then the tracks will be uploaded to your locker. You will need to collapse and expand the "MP3Tunes Locker" node to refresh the artist and album lists.
As always the download link is on my website. Let me know what you think!
