The first reply from Skater actually got me where I want to go. I had not thought to simply use a key-binding. ( I don't think that was what I had been doing originally, but it get me where I want to go). Thanks much to Staind and Elw3 for helping me remember what was as compared to what is!
Now, to nitpick the differences: I think that the original setup I had made use of the Xorg.conf file, making a 'virtual screen' which was as wide as both my monitors, thus the monitor/desktop relationship was 1:1. (I think). That was back when I worked on a desktop and my monitor config rarely if ever changed. Now that I work exclusively on laptops and move from place to place, with monitor setups never the same, it is not really a feasible approach.
The constantly changing environment eventually led me to confusion regarding what gets set where, how, and when, with RandR, Xorg.conf, and video cards/drivers(a couple of different laptops) exacerbating my already clogged old memory :-) .
The keybind solution works really well for me because I rarely use the desktop gadget in the tray to do more than remind what desktop I am on when I return from a break, I simply cycle to the desktop I want using the Ctrl+Alt+(left/right).
When I move from place to place (main home, farm workshop, other semi-static-place-where-monitor-setup-rarely-changes), I simply use RandR to select the appropriate config after login, and I am on my way. No muss, no fuss.
The beauty of enlightenment, (much like Perl) There is more than one way to do it (TIMTOWTDI). Which is another of the reasons I have been stuck on it for so many years...
Thanks again to all!