I made a mistake. I created a few nested menus separately, and now would like to "move" them into the "Main menu" section instead of having to recreate them from scratch.
Is there a way to do this?
e.g. I want a nested menu like this:
But instead of creating it "inside" the Main menu, I created it "outside" the Main menu (i.e. "Main-Category" shows up in the Navigation section along with "Main menu", instead of showing up only after I click in to the "Main menu")
Can I just "move" it into Main menu? Some of my nestings are complicated and it's going to take me a long time to redo them.