I was hoping someone might pick up on the suggestion to write a checker that would "allows any one of several answers to be counted as correct" as suggested by Fred Sullivan. I have encountered the need for this several times.
More specifically following his suggestion
"How about something like ANS(Compute("ans1, ans2, ans3")->cmp_require_one) that gives credit when the student answer is any one of the list?"
This sounds like a wonderful idea. I do not know how to do this but would certainly appreciate such a checker.