Thanks for looking into this. I can see how nicely things work in your example for issue (1). As for issue (2), I wondered how the key would be selected, but I assumed that it would probably be the first value. As I look more closely at this thing, I am seeing that I may have some sort of caching issue, as edits to my Google spreadsheet do not seem to be consistently coming through. I will investigate that further in the meantime.
