Create a main product category with its sub categories in the function window "Data management > Category setting ".
PRODUCT CATEGORY setting window is displayed at the bottom left corner. You can add MAIN CATEGORY by clicking on the green plus button New Main Category and add SUB CATEGORY by highlighting the corresponding MAIN CATEGORY and clicking on the green plus button New Sub Category .
If you want to delete a main category, highlighting the product category which you wish to delete and double click on the red minus button Remove Category, and that Product Category will be deleted. YOU CAN ONLY DELETE THE PRODUCT CATEGORY IF THERE IS NO PUBLISHED PRODUCT BELONGING TO IT.
Note:
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