"Flicking down on any letter renders it in uppercase. Flicking downward with two or more fingers anywhere on the keyboard toggles Caps Lock, which is identified

"Flicking down on any letter renders it in uppercase. Flicking downward with two or more fingers anywhere on the keyboard toggles Caps Lock, which is identified by swapping the uppercase and lowercase labels on the flickeys." It seems that the Caps Lock idea should not be limited to the upper and lower cases. I would propose that a two finger swipe in any direction could shift the keyboard and replace the primary key faces. Flick a single key with one finger to type from the alternate characters in that direction. Double flick up, right, down or left to shift-lock in the chosen direction. Shift-locking consecutively in the same direction would cycle in order. A two finger tap could return to default.