Massey ferguson polish 231 hydraulic question?

[Charmed483]

I have a polish 231. Under the seat is a 3 way valve for hydraulics if you are sitting on tractor do the valve to right it goes to rear qd out. Middle is for the rear lifts and to right is 2 ports that are capped off can i use those ports for my fel ? I just got an fel for it and starting to hook it up but i cant find this hydraulic valve or info on it.