I have rode a few bikes with jockey shifts,and even some with "suicide" shifts.
It is not my cup of tea, as it adds even more "things" to do, while trying to not get killed in traffic.
The most difficult bike I ever rode ws a Exile barhopper, that had a twist grip clutch on the bars, and a suicide shift on the right side of the bike.
It was intresting to say the least.
More power to ya if you can get it to work, safely....

I had a mate many many years ago who broke his leg (pins, wires etc)
He wanted to keep riding so he cut a hole in a broomstick, stuck the gear lever through it & made a bracket that screwed onto his tank badge.
A bit rough but it's a thought to get you started.
How does that work with the clutch and all? 
Basically the "jockey" shift is just a handle that does the same thing as your left foot would do. Most "jockey" setups include the clutch being moved from the bars to the foot, so you can push in the clutch (like on a car) , then reach behind ya and shift the bike.