How do I edit a Proforma Invoice and add products in V5?

1. Open the Proforma Invoice details, check the invoice number and buyer, then click “Edit” in the upper right to edit the invoice information. 2. Go to “Item List (3)” and click “Add Item” to add existing products, or click “New Item” to create item information. 3. Follow the table instructions and click “Edit” at the end of a row to adjust the editable fields. Press Enter to save or Esc to cancel. 4. Check each item's unit price, quantity, and subtotal. To review the changes, click “Diff View” in the upper right.