Create menu with 4 levels

good day:
I want to create my main menu with 6 levels, as seen in this image:
https://prnt.sc/pments

But using the theme fortune, you can only create up to 3 levels, as seen in this image:
https://prnt.sc/pmep7z

I need to create a menu with 5 to 6 sub-levels.

Thanks.