Not everything shows in LS3

When i try to use LS3 on create multiplayer game i can make things, but I can`t figure out how to link things togheter…
I am used to LS2 so I know what to look for, but it seems for me like there are menu(s) missing.
The rest of the menus are in “Custom Addon Framework”, scroll to the side with the arrow in the upper right corner.