Gamepad Button Addition

In 0.14, I had 2 buttons on my Bluetooth gamepad that MCPE did not register. The provided screenshot is the hardware diagram, and the 2 buttons in the center, A and B, are them. In the 0.15 Realms beta, B now works. I don't know what you changed, but if you can figure that part out, can you try to keep it that way, and if possible, add in A? The remote is a SteelSeries FREE, a Zeemote model, if you want to try to research it.