Your _preferences list should have a card named
nav card is a special card that controls the links you'll have in your main site menu.
nav card you should keep a checklist with the items you want to be shown on the main navigation menu of your site. If you delete this card or all the items from the checklist there will be no menu.
Each checklist item can take the form of a canonical Markdown link, i.e.,
[Text of the link](http://actual-address/), this will ensure that they show the text you want them to show and point to the correct address you want them to point.
To point to pages inside your own site, you can use relative links, i.e., instead of writing
http://somewhere.com/path/to/page you write just
There is a special item (which is the one enabled by default) that automatically displays links to all your lists/categories pages. The special item is identified by the following value:
__lists__. You can remove the special item and still point to specific lists manually by writing their relative addresses in the checklist, and you can use the special item along with other items, placing them before or after it.
It doesn't matter if the items in the checklist are checked or not.