
I spent ages going through every aspect of the “Trackpad” preferences pane, and watching all the little videos on gestures, but it turns out that this feature isn’t even in there. To turn One Tap Dragging back on, you need to go into “Universal Access”! How do you like those APPLES! Thanks APPLE!
Once you have opened Preferences and clicked Universal Access, click the “Mouse & Trackpad” tab, and then “Trackpad Options” towards the bottom.
Now, by checking one simple checkbox, all of that anguish and suffering will go away! Simply check the box next to “Dragging” and One Tap Dragging is restored. And if you were used to the “Drag Lock” feature in previous versions (where you have to tap again to release”, you can also restore that feature in the drop down to the right of “Dragging” as well.
Below is a screen capture of an option I would REALLY like to see Apple implement in coming versions of their operating system.





