The only 'cabotage' sector is ANC-ORD, and even that would be allowed to pickup at ANC for CHI if was part of a 'flight interchange' .
As you say, nowt new - run west-to-east give optimal payload/range blah blah blah
effectively it illustrates that lots of frtrs asia-USA full, USA-asia empty, so top up with AMS cargo, hope to pickup some more AMS cgo at CHI, pickup a bit of MEast cgo as well, hope to fill up a bit more at AMS, maybe you can get your lf up