Create a Relationship
You can create a relationship between existing products.
Select the category or product that you want to associate products to, and then
click the Relationships tab.
Click the toolbar item to add an item.
A context menu appears.
From the context menu, select the type of relationship to create: Cross-sell or
Use the Item Picker to search for and select items to
associate for a relationship.
Click the Check icon in the toolbar to close the