Hello @flynnjacobs ,
Yes, there is an option in the theme’s customizer to enable a custom URL button, that will be displayed as the last item in the menu.
You can enable this button with the following steps –
1. Go to WordPress admin dashboard -> Appearance -> Customize.
2. Then select Header -> Main Menu.
3. Under Last Item in Menu option, select “Button” from the dropdown.
(Important Note – The Last Item in Menu setting will work only if you have a primary menu set)
4. After selecting “Button” from the list, you can change the text displayed inside the button under Button Text option, and URL of the button under Button Link(URL) option.