To Assign Custom Costs

Custom costs are normally assigned to work locations, but they can also be assigned to features. Public custom costs are manually assigned from the Custom Costs page of the Units Catalog; private custom costs are assigned from the Private page. Custom costs can also be assigned by using the Assign Custom Cost command and then typing the item's name in the Design Workspace.

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 Units Catalog, click the Custom Costs tab or the Private tab to display a list of custom costs, locate the item that you want to assign, and then drag it to the target feature or work location.
Or right-click the target feature or work location, select Assign Custom Cost from the shortcut menu, and type the name of the item in the new row.
Note: Based on your input, the Design Assistant will search the database and display a list of the matching items found. To select an item from the list and assign it, click the item. Or use the arrow keys to highlight it and then press the Enter key. To cancel the assignment, press the Esc key.