In the demo, you show the left thumb being used for spaces and the right thumb for holding down for the modifier function. Is this programmable? In other words, can spacing be done by the right thumb and the modifier invoked from another zone on the spacebar / battery unit?
I tried spacing using my left thumb (I was taught to use the right thumb in typing class) and spacing with the left thumb felt very unnatural. It slowed my typing speed down to about 25% of normal.