I'm a longtime Mac user, and also quadriplegic. I've always been able to use a standard keyboard & mouse, but I've recently been moved to a new seating system that supports me in a much better posture, but makes accessing a standard setup difficult. Luckily, there are a lot of great accessible technologies for Macs... but I'm stuck on one issue. In my new setup, I'm using a wireless switch interface with SwitchXS to "type." This software has mouse emulation functions, but I find them terribly clunky and slow. My wheelchair itself has a bluetooth module, so that the joystick that I drive with controls the mouse. The problem is that I can click & right-click with this device (by quickly nudging the joystick left or right), but there's no way to drag. Right now I'm making do with a dwelling app (ClickNoMo), but this too is less than ideal. What I'm looking for is a utility that will do one of the following: Turn on drag (or "click lock") when I hold the "left click" down for a given length of time (say, 1.5 sec) Turn drag on when I triple-click (rather like a touchpad) Allow me to reassign the right-click to drag (the joystick doesn't have drivers to do this; maybe there's a bluetooth equivalent of USB Overdrive?) Some other option I haven't come up with yet... I'm honestly surprised this isn't an option in Universal Access; from what I've read, it's a factory option in Windows. FWIW, I found pre-OS X extension (called ClickLock) that seems to be precisely what I'm looking for... it's just a decade and 7 OS's too old. Thoughts?