Here is our documentation about menu – https://www.8theme.com/documentation/xstore/menu-set-up/
In 4.16 theme version Menu options were moved into popup https://image.prntscr.com/image/5yXyaVh9QG_srPw4jpVEdw.png so to be able to see all menu settings, you need to click on “8Theme Page Options”.
Regards