change Sends for the same Knob

Hi,
Just another newie in the Scrip world!
So I dont have many Knobs in my controller(NanoKontrol Studio Xl) so I wondering, what its the correct way to do this, example: In Ableton I have a track whit 3 sends( but in the controller I have just 1 Knob for the first track), so I want to press some button for navigate into the sends that I have in Ableton, choose one and control this, and be able to change to the others sends in the same track also with the same Knob.
Thanks.