I am planning a trip from Orlando to somewhere in Asia using my miles (Senator status). I am not sure about the three region ticket and how it applies to this trip. I want to make use of the second person half miles option. Does this apply to the 3 region ticket as well? What if I use Singapore Airlines from JFK via FRA to Singapore? It is one flight number all the way through...is that still 3 region? But then I think the half miles Senator option does not apply considering it is not with LH nor Swiss. I want to do this trip in F by the way. I already have all the miles for C class 3 region but would love to this is first class. Any thoughts on possibilities?

Thanks!