Apologies if this video is straight forward stuff, but I came across it and found it simplifies the tractor circuit quite well so a DIY guy can get their head around where the oil must go.
Lots of people will recommend diverter kits to save money, but I think mostly because they come as a kit with all the parts you need. Personally I wouldn't go this route because you can come up with a better solution or use a local hydraulic shop and avoid brand name pricing.
A diverter kit will be an electric button on the FEL joystick to activate a spool valve and divert oil away from a FEL function and you use the joystick to do the third function while the button is pressed. This still requires an electric/hydraulic valve kit and breaking the hydraulic lines for one of the FEL functions to tie in. Why not tie in directly at the manifold block and run dedicated lines to the new electric/hydraulic valve and now a toggle switch will run the third function cylinder in and out without giving up either FEL functions. Seems like the same effort to install either one, just will have to do some leg work on the correct sized fittings which any shop can help with.
For the joy stick you would need a spring centering toggle switch that can mount where you can reach it with your thumb, run the wire up the shaft and shrink wrap the run to make it look tidy. Or you can get fancy and find a loader joystick handle with the button incorporated and find a way to adapt it (not sure how viable this part is because I'm just shooting from the hip and haven't looked into the market for this kind of thing).
Optionally, you can go factory from Bobcat. I don't know if the accessories for your model are still supported, but you could use a kit for the current tractors after confirming they haven't changed threads/fittings that they use. You may need to customize mounting arrangements because I imagine the factory kit will come predesigned to utilized existing holes and mounting locations.
EDIT:
In case the link didn't work, it's Dave Knows How on Youtube. It is titled for rear remotes, but it covers the whole hydraulic system.
