Oh ok so in that case I got it backwards... so on mine the loop is loader > third function > remotes > backhoe. No idea where the 3 point is as I don't see any of these hoses. The upper left port hose goes to backhoe (as a return).You are getting close to understanding.
The upper right port is pump pressure OUT to auxiliary equipment.
The bottom center port is low pressure tank return from auxiliary equipment. It goes straight to the sump.
The upper left is high pressure IN from the auxiliary equipment. It powers the 3pt.
Dan