To Assign Matched Units Manually to Features

The Matched CUs page of the Units Catalog displays a list of compatible units that match the attributes of a selected feature type (if unit rules have been configured for this feature type). This catalog function makes it easier to find an appropriate unit for a particular feature as well as locate alternative units.

For more information about compatible unit rules, see Working with Compatible Unit Rules.

Matched CUs page, Units Catalog (Design Assistant)

Open the design in the Design Assistant.
If the Units Catalog is not open, click the Units Catalog button on the Standard toolbar.
Or choose Units Catalog from the View menu.
From the View menu, choose Expand All to expand the work location and feature folders in the Design Workspace.
In the Design Workspace, select the feature to which you want to assign a compatible unit.
In the Units Catalog, click the Matched CUs tab to display the list of public compatible units that match the selected feature.
In the lists of matched units, locate the unit that you want to assign and drag it from the catalog to the selected feature.