Category not showing up on menu

I know, super basic things, but without looking at your dashboard…have to try to narrow it down.

So the obvious would be to:

1. Under Posts –> Categories – add that category “Race Day”
2. Under Appearance –> Menus – click on the “category” drop down menu and check the box next to “Race Day.” It might only appear under “view all” since the default category selection options doesn’t show all of them.
3. It should then appear on the bottom of the menu to the right as a bar, one of many horizontal bars stacked. Make sure it’s in the order you want it to be in relative to the others and that it’s aligned to the left hand side – in other words make sure you haven’t created a sub-category.
4. Click the box that says “navigation menu” at the bottom of that column and then save that menu.

If that doesn’t work let me know.

Wen, thanks. I was able to follow you all the way to the point of checking “navigation menu on that column”. I cannot locate that checkbox anywhere under menu structure. The Race Day category is showing listed in the menu structure as a category(opposed to page) and not as a sub. But it’s not there when viewed on the site.
Thanks