In the Projects window, right-click the Configuration node in the project you want to modify, and then click Edit.
The Configuration Editor appears.
Click the Normalization tab.
The Normalization page appears.
In the Normalization Mappings list, click the definition you want to modify.
Click Edit.
Do any of the following:
Modify any of the fields described in Master Index Normalization and Standardization Structure Properties.
To modify a variant, select the variant under Variants, and then click Edit. Modify either field on the dialog box that appears.
To remove a variant, select the variant under Variants, and then click Remove. Click Yes on the dialog box that appears.
Click OK.
On the Configuration Editor toolbar, click Save.