Just a suggestion. Maybe a next course can be made showing how to handle a Domain environment where the domain name is different from your one. So that we can see how the group scope works and how to tie another domain under your existing domain. Not sure if I make sense here
Thanks for the feedback @jerrye
It makes sense what you suggest, to have a more in dep administration of trusts between domains, and administration of child domains right? The domain name should not be a problem.