Can´t replace main navigation for off canvas panel

He guys! I added the off canvas panel and set it up, but the main nav is still shown for some reason. Am I overseeing an option to replace the normal navigation with the off canvas panel? I´m pasting the page address into the private info box.

I have another question about GB: I´m using GB release candidate and would like to know if i have to manually update to the stable release later on or if the release candidate updates itself to stable release when the stable release is published.

Thanks in advance