...
The Serial Numbers column is available if the Serial Number Tracking option is selected on the Administration > Settings > Purchasing and Warehouses form. For each serialized item (for which the Use Serial Numbers check box is selected in their master recordrecords), click in the column to open the Serial numbers dialog box. In this dialog box, you must can provide the serial numbers according to quantity of the item. Serial numbers are required only if the Control Stock Balances by Serial Number option is selected on the Administration > Settings > Purchasing and Warehouses form.
The Specification column is available if the Use Sets for Sales option is selected on the Administration > Settings > Purchasing and Warehouses form, and you can select a specification to be used for the item if item is a Set. Click the Set Components button on the toolbar to specify the components for the set.
...