Advanced Mode
My Store > Store setup > Transaction summaries
choose to include an item, the amount is added or subtracted from the total amount.
e.g. Include shipping fee: 10,000 (Total order) + 2,500 (Shipping... fee) = 12,000 (Total order on transaction summary) → Shipping fee is added and applied to the total order.
e.g. Include points:10,000 (Total order)