how to enable mouse keys by default or command-line? w/ *addendum*

I have one of those minor bugs that annoys me, and I put it off while I was tracking down other bigger problems. But I tend to use mouse keys (on the num pad) a lot. However, at least once an hour or so, they just stop working, and I have to go into the Trinity Control Center dialogue and set them again. ALT-F12 enables them, but then the settings aren't mine; the cursors moves slower, and my click keys don't work. Also, many times when this happens my keyboard will also stop working, so I have to go to enable to mouse keys with only the mouse itself working. I feel like there is probably a configuration file hidden somewhere, or an easy command that would enable them quicker than what I have to do now. On the old KDE3, too, this was somewhat of a problem, but only when I first booted. Then I would enable the mouse keys, and they would be stable for the rest of the session. This is much more buggy. By the way, I am using an old Apple mouse, model #A1152, and I run Debian Jessie 8.8.x with TDE. *****addendum Oooops. It occurred to me after I sent it that the keyboard would be more appropriate info. Sorry, I was falling asleep when I wrote that. It's an HP keyboard #KU1060, but manufactured by Chicony. (This keyboard doesn't appear in TDE's list of supported keyboards, nor any that are close to it. Online research has yielded bugger all.) This is for use on my desktop computer, which is a Frankenstein of new parts and motherboard, and sata hdds, inside a big old metal case from about the 80s. ***** Thanks for any suggestions. Bill