Hello fiskandar ,
To mainnav content using product category
step -1 : Go to “Menus/Main menu” and you can rename the existing menu items as you want or you can unpublish all existing menu items and add new menu items by clicking the “New” button at right side.
step -2 : After clicking the “New” button you have to select menu type as per your requirement.For example- if you want to show a single article, thenyou have to select “Articles / Article Layout” type.
step -3 : After menu type selection you need to fill menu item details.
Step -4 : You can add more menu items as you want by following above steps.
step -5 : Apply the changes every time and check result at front-end.
