I've misinterpreted your post.
I, at first, thought that you wanted a third function for your front Bucket/Grapple.
Then again, a third function on your joystick can be for what ever you wish it to function.
Mine was purchased through my dealer here in North Florida, now defunct, and my information was that an after marketer
down the street from the production facility in NC installed the switch and the cost?
Gulp...$1100 but believe you me. It's worth every penny to not have to maneuver the lever to my right side
every time I need to close the bale up front.
Now, let's discuss hydraulic fluid flow.
Shall we?
Maybe in another thread. I think THAT conversation would hijack this one.
Hope it helps.
Cheers