No response yet to my question to Adafruit's forum.
For the future, that's considered too be rude, especially if you do't link to it
But you need the datasheet
I'm still learning the social etiquette with these forums and will be more careful.
Based on your experience, if I find the correct GPIO address should I be able to activate it with some relatively simply code?
Wouldn't that suggest I should be able to activate an LED?