Hello,
In the WordPress Dashboard, go to “Appearance” and then click on “Menus.”
If you haven’t created a menu before, you’ll need to create a new one. Enter a name for your menu (e.g., “Product Categories Menu”) in the “Menu Name” field and click the “Create Menu” button.
After creating the new menu, look for the “Categories” box on the left-hand side of the menu.
Check the boxes next to the categories you want to include in your new menu, and then click the “Add to Menu” button.
Save the Menu.
Then Go to WoodMart Header builder > edit current header > configure main menu settings and choose the menu “Product Categories Menu”.
Best Regards.