Hi, curious about long layover situation. What happen to the luggage when we have multi-segment award tickets with long layover? Example: What if we fly from SIN-ZRH, then long layover (23 hrs more or less), then continuing the next day from ZRH to SFO. Do we need to get our luggage at ZRH or can it be checked through? What if in between ZRH to SFO, we put another long layover, say in CPH, then the next day continuing to SFO. It'd be nice to structure an award from SIN to SEA or SFO, but fit 1 or 2 or 3 layovers. I have not seen a limit on segments yet with UA, so I'd be interested to see how many cities that I can fit on a single itinerary.