Administering Financial Consolidation and Close Managing Supplemental Data Managing Dimension Attributes in Supplemental Data Manager Adding Dimensions for Supplemental Data Adding Dimensions for Supplemental Data To add dimensions: On the Home page, click Application, and then click Supplemental Data. Click the Dimensions tab on the left. Click Actions, and then Add. On the Properties tab, enter a name and description. On the Attributes tab, add the dimension attributes. Note: The History tab logs changes to Dimensions, including changes in modification types, supporting objects, modified by, and the old and new values.