Select the item in the transaction list (left panel).

Press the Quantity button (highlighted on the function panel).

Enter the desired number using the numeric keypad or keyboard.

Press Enter or the on‑screen confirm key to apply.

Verify the quantity and updated total in the transaction list.

After entering the quantity in the small Quantity box above the keypad, press the Enter/confirm arrow on the numeric keypad.

The quantity is applied to the selected item and the popup closes.

Verify the updated quantity and line total in the transaction list.

Tip: To change, select the item again, clear the field (C or backspace), re-enter the number, then press Enter.