how to add a tab on main nav for my fundraising

I went thru the pdf... and am trying to follow the instructions for adding a tab to my nav for my fundraising page, but when I go to appearance --> menus, there is no "fundraising" pages or options anywhere to event select from.

Where do I start to troubleshoot this?

Was I supposed to create a PAGE somewhere first? If so, nothing was specified along those lines.

For a test, I did add another Fundraiser... and I see the "Next" arrow on the post pointing back and forth... but that still doesn't solve this issue.