Board Thread:Support Requests - Getting Technical/@comment-4276811-20200608060152

I am trying to expand my Wiki's Navigation Menu

https://imotwom.fandom.com/wiki/IMO:_The_World_of_Magic

I have four custom level 1 navigation items which is the max, according to the help pages.

How does https://halo.fandom.com/wiki/Halo_Alpha have five custom navigation items and how can I get my wiki to do that? When I try to add a fifth nav item, it is hidden. 