You are able to e-book a stopover over a 1-way award ticket booked with Mileage System miles. Also, you won't pay for any gas surcharges when traveling Qantas. I normally like flying with Air Tahiti Nui: the flower whenever you board, the colours with the pillows/blankets, the exciting basic safety https://businessflightshop.co.uk/blog/7-benefits-of-flying-business-class-flights-to-hong-kong/