Meta Info/Rename
You can directly edit data in the browser window. Just click on something to select it, then, without moving the mouse, click again and wait a second. The item will then go into "edit mode" and you can type something. Press [ESC] if you change your mind.
If you select more than one song, then edit something, kJams will ask if you want to apply your change to ALL the selected songs. This makes it easy to for example set a bunch of songs to have the same album name or pitch change or comment (or anything, really).