Apologies if this has been covered before, but I cannot find it...

We are two families chartering in late June, 7 people total. 4 adults, 3 children ages 17/16/15.

Question is: is Travel Authorization submitted by each individual, or can you submit as a family/group?
Follow up to that is if more than one can submit per Authorization, would we submit as 2 separate families, or as 1 group since we are traveling together?

Again, sorry if covered already, and thank you.
-pk