If you are adding a user to a Parent Brand then you want them to have access to all of the Child Brands right away. We do support adding users to more than one brand at a time but it is a manual selection process that can get tedious based on the number of Child Brands.
We should make the process more simple so that if a user is added to a Parent Brand, then there is a prompt or some confirmation notice that says "Add User to all Child Brands" that you just have to say "yes" to, and then it's done.
