wrote:
How do you comment on people's posts on that group? I just wrote
a comment, which I entered in a box at the end of the comments that
were already there, and which had my icon next to it. Seemed like
I was being invited to comment... but then I couldn't find a "submit"
button (or whatever it's called on FB). Any suggestions?

Thanks,
Joyce

You just type your comment in the box then click on the share button.

--
Adrian