Support "Add finger to click" on Trackpads
It should be possible to click while moving the cursor by tapping the trackpad with additional fingers. For example I am using one finger to place my cursor on a link, then I can tap a second finger to select that link. I can then continue dragging the cursor with the first finger.
This feature allows the user to be more efficient with a trackpad as they don't need to stop moving the cursor before clicking, something that is currently a lot more awkward compared to using a mouse.
Basic use case:
- Move cursor to a clickable target then, without lifting the first finger, tap a second finger to click that target. The cursor can continue to be dragged with the original finger.
Additional use cases:
- Move cursor to a dragable target, add a second finger to "pick up" the target, move the target to the destination, then let go of the second finger to drop.
- Note: Currently adding a second finger will enter scroll mode, so this should be behind a preference.
- Move the cursor using a finger, add 2 fingers to right click, add 3 fingers to middle click.
Implementation in Other Systems
Yes, this feature is implemented on the builtin Macbook trackpads and on the Apple Magic Trackpad.