You can rearrange your menu arrangement if you like. This means that it is not necessary the sequence menu as per what is default. You can priotize which one is first and which is last. Now, let say this is the existing menu in your Online Store.
1. Go to the wordpress Menu > Appearance > Menus
3. On the menu listing, simply drag and drop which menu you need to make priority
4. To delete any menu, select on the menu, and click Remove
5. On the Menu setting, click on the “Header Menu”
6. Then, click the button “Save Menu”
7. Go to your Online Store and you should see your menu is now in a new arrangement.