Minor bug in SG2: when warehouse 10lvl contain some stuff in 1,2,3,4,8,9,10 slots, I get error: "Unable to unload cargo: Not enough warehouse space (counting from Slot 6)" if you want unload cargo to 6th slot when 5th is empty. It means that drag'n'drop do not work well on planet, while on market all this works exelent.