mario Hello Mario,
I would like to know if you tried to search for help here in the forum or in slack before?
Nav bar menu
Admin -> Design -> Static Pages -> Static Menus -> Main Menu (Click the pencil to edit)
After that you will be able to see the navbar menu.
Categories and Items: Sam is already working on a solution. In the meantime try this
Admin -> System -> Settings -> General -> Restaurant -> Location Mode
Change from single to multiple. Log off and Log on. Then you will be able to see the demo categories and items.
Delivery
Which version are you using? I’m using v3.0.4-beta.20.1 and works perfectly
Admin -> Restaurant -> Settings -> Settings(tab) -> Offer Pick-up -> Disable -> Save
Logo
Admin -> Design -> Themes -> YourTheme -> Customize -> Logo Image
That adds the logo image to the navbar
Extensions
That’s based on the theme you’re using. Orange Theme requires: