How do I add the “subtext” to the top level navigation menu items?
I’ll be updating the documentation to make this part a bit more clear, but you need to do two things:
1) From the Screen Options panel (at the top right of your menu panel), turn on the Description checkbox.
2) Now, each menu item will have a Description listed. Enter your 2 or 3 words describing the link here and you’ll be good to go!