A quick question. I'm planning a OWE RTW that will take me to NZ to visit family originating from ZRH. While there I'd like to buy another OWE RTW originating in AKL to take advantage of the lower cost. The usage would look something like the following:

RTW-1: ZRH.....AKL
RTW-2: AKL.....ZRH.....AKL
RTW-1: AKL.....ZRH

Is this allowed?