Lists all the MAINxREDUCTION sizes available for the reducing component. To change a reduction size do the following:
Click the Reduction Size Selection List ellipsis next to the Size Range in the New and Edit Component Pane, when creating or editing a reducing component.
The Select Size dialog box displays.
Select the sizes to add or clear sizes to remove, and then click OK.
Use the Select / deselect all check box to select or clear all values.
Click File > Save to save the changes to the catalog.