In version 1.8:
There's now a setting to toggle on the XP section. It's hidden by default. My guess is that will be the most common selection.
If you've been using this extension (thanks!) and use the xp option, you'll have to turn it on after updating. Don't worry, your xp will be there.
The advances list now has the add and edit buttons like all the other lists. (That took awhile to figure out.)
When adding an advance using the "Create Item" radial menu option, the advance number and rank are now auto-filled.