To begin the order process you select the supplier from the drop down menu near the top left corner of the widnow. Click the button labeled "Show Inventory from this supplier" to show a window containing all items which you can purchase from the chosen supplier.

The window also contains a 'search box' in the lower left corner. Start typing the first characters of a part number into the box and all items not matching the criteria will be filtered out of the list.

Add an item to the main Ordering Window by selecting it in the items list.

When you've selected all the items you wish to purchase click the 'Hide' button to hide the Items list as shown on the following page.

Note: It goes without saying that you won't be able to process purchase orders unless you've created a database of Suppliers and also edited your inventory items to associate each item in the inventory with the relevant supplier(s)