Select purchase orders by clicking them. The color of the selected item turns to darker blue. Only one puchase order can be selected at the time. Unselect an item by selecting an other item, or by clicking the mouse on an empty area on the list.
You also select purchase order items by clicking them. The color of the selected item turns to darker blue. The Windows style selection using CTRL or SHIFT can be used on the list. Unselect an item by clicking it again, selecting another item, or unselect all by clicking the mouse on an empty area on the list.
