So setting it up that way, and choosing color, that worked...mo idea why it didn't work before, as that was one approach I tried, but whatever operator error it was, it works now.
One step beyond that, f I want to have multiple colors lit, say, white and red lit at the same time, I can't display that..its a single color at any one point in time...correct? If so, in some cases, the single string approach may be the better way to go from a preview standpoint.