I used 2 sticks for a long time. only because my one stick was wore out and my reserve only had a very limited amount of buttons.
here was my setup after making it 2 sticks.

I even fastened them down to a piece of plywood and made it so it would fasten right to the slide tray so that the sticks would not move around. Just remember that those sticks will want to slide around if you try to use them like that.
All you have to do is go into the controller section of the clipboard and select the stick in the drop down above and program it the same way you do now and do that for both sticks.
it worked well for me for the short time that i needed to do so until i got my current set up with stick throttle and pedals.
btw uptown maybe he already has the 2nd stick (backup) and no money to just buy another poece of equipment. just one reason for it