Click/drag lock utility or workaround needed

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?

 

Updated info

Not a single reply? C'mon, MR, I know you can help me!

Here's a bit more info that I noticed the last time I was in the new wheelchair & using the joystick-mouse: It does respond to changes made in the System Preferences/Mouse panel, as far as changing the actions of the left & right buttons. I could live without right-click... is there any way to turn that into drag? It's not in the dropdown list, but I thought there might be something that could be added to add it?

Additionally, my switch interface has 2 free ports which can emulate keystrokes... is there any way to make a "hot key" for drag?

 

Thanks for the reply, Hal! Unfortunately, RJ Cooper doesn't have anything to do this... it was one of the first sites I checked.

After a couple weeks using "dwell" to drag and drop, I'm going crazy... Dwelling is clumsy and the timing has to be absolutely perfect... I've got to find a better solution. Am willing to pay a developer at this point, if that's what it takes.

 

Wiz,

Yeah, I'm well aware of the sites you mentioned... AssistiveWare actually makes the software I'm using & linked to in my OP. So far they've not been able to help, although I am in ongoing conversation with them.

It's not the getting set up part I'm at; aside from chatting with other PWD online, I'm rather a geek, and certainly understand & use my Macs at a more complex level than most users. I've got it all set up, it's just that (thus far) I haven't found a solution to my dragging problem. If I were just using the computer an hour a day to do email and web browsing, I could live with the clumsiness of dwell-type software (which is what every AT person I've spoken with recommends). But I make my living on the computer and am on it all day, and dwelling simply is not cutting it.

I figured I'd ask here because it's outside the bubble of AT/OT/rehab folks, thinking it might be something a non-gimp geek might have insight into.