And of course, after I sent this mail, I figured it out.
Ctrl-down arrow to move without selecting.
Ctrl-space to select single objects without unselecting any objects
already selected.
Still hard with one hand, but easier than trying to use the mouse 
Regards,
Mike McAllister
Principal Systems Engineer
TKC Global, LLC
Phone: 512 423 7447
Email: michael@pairofsixes.com