I use BetterTouchTool to map three-finger-swipes to the respective keyboard commands: - Swipe left to focus the column on the right, swipe right to focus the c

I use BetterTouchTool to map three-finger-swipes to the respective keyboard commands: - Swipe left to focus the column on the right, swipe right to focus the column on the left (reading it, it seems counter-intuitive but doing it is almost perfect). - Swipe up and down to slurp in/out.