Based both on macOS documentation and on the experiences of people who use macOS: > without Drag Lock: Double-tap an item, then drag it without lifting your fi

Based both on macOS documentation and on the experiences of people who use macOS: > without Drag Lock: Double-tap an item, then drag it without lifting your finger after the second tap; dragging stops immediately when you lift your finger. > with Drag Lock: Double-tap an item, then drag it without lifting your finger after the second tap; dragging continues when you lift your finger, and stops only when you tap the trackpad once. > three finger drag: Drag an item with three fingers; dragging stops immediately when you lift your fingers. It may well be that with current mac systems that have "force touch", it might be possible (or necessary) to replace some of those steps with "press hard". I stand by my statement that this is a lot of engineering and a lot of user adaptation in order to not have mouse buttons.