Possibility 1
- Login on the backend
- Under Menu click on Main Menu
- In the Main menu click on Home
- Select as Menu type: SP Page Builder > Page
- Select as page: the SP Pagebuilder page you want to show.
- Click on Save & Close
- Check the frontend.
Possibility 2:
- Login on the backend
- Under Components select SP Page Builder Pro
- Click on the blue button Get Started
- You see now a list of all your pages. Select the three dots at the end of the page you want to add to a menu
- Select the option Add to Menu
- Fill in the fields.