On this tab, you can specify the monthly usage for the fixed assets with the Units of Production depreciation method.
The "Fixed Asset Monthly Usage (create)" form. The Fixed Assets tab
Click Add on the tab toolbar to append a line to the document.
In the Fixed Asset column, select the fixed asset being used in this month.
The UOM column is populated with the UOM for measuring usage.
In the Quantity column, you can enter the usage in the specified UOM.