No, I am not flying SU on any of the legs, but the LAX-PPT flight is on TN, so not bookable online.
I assumed that either 2 stopovers or one stopover and one open jaw are allowed on award tickets, i guess i was wrong
I actually need 2 stopovers in NYC (about 1 week long each time), so if I cant find an agent that will be able to prform a miracle i'll just have to buy a separate ticket SVO-JFK-SVO, at least it'll get me some miles

right now the fares in Y start at $470 ai for my desired dates!