Hey guys!
After a lot of googling, I had to eat my pride and ask you guys ;)
Reorganizing the SiteTree menu backend in SilverStripe is easy with drag ann drop, but how do I get this reorganizing to be visible on the frontend, i.e. the menu. How can I reorganize the backend with drag and drop, and get that exact same structure frontend?
From what I've googled, I see that you had an option in SilverStripe 2.4 to do this. I can't find it any options for this in 3.0 backend, so I thought maybe I had to set a config variable to activate it. But I can't find anything there either.
Hopefully this is suuuuper easy, and most of you will facepalm as a direct cause of my question.