Primary Categories
What does a Primary Category do:
"Primary Category ID": This is a reference to a different Category you wish to duplicate its products or Sub-Categories tree. If you add a category ID in this box the current category will not be able to have its own Sub-Categories or Products because it will use the ones in the ""Primary Category ID" field. This helps by having to manage only one category of products or categories when you need to have the category in more than one area of your store.
There are two ways to give a Category a �Primary Category ID� first is by simply typing in the ID of the category ID you would like this given category to reference.
The second is to click the �Edit� button next to the primary ID field in the category manager for the given category. When you click this button a popup window will open.
