Ok, so you want the multiple email addresses to come up on the grid! Hmm, I see what you mean. There is a column for Primary Email in the Household Info section, but not other emails come up. So, my email address shows up for my husbands, and all three of my sons who are leaders! Yet, I've entered each of their email addresses into our household. Gotcha.
I too wonder if it would be possible to add a column to the grid that would pull up the other email addresses. Or, are we missing some default or setting that would pull it up.