To create cross-sell links to other products:
From the All Selections pane, click the product and then click the Add button. The product moves into the Your Selections pane.
Note: (1) Repeat this step to add each product that should display as cross-sell link.
(2) To move all of the products shown in the All Selections pane to the Your Selections pane, click the Add All button.
To continue, click Next. The Manage Inventory page displays.