Yea I ended up doing the domain as a secondary domain and then, using excel adding primary email for A2 and secondary email B2 ="gam create alias " & B2 & " target " & A2
I just took the list from A2 in a separate sheet and Find and replaced the Primary domain with the one we wanted to be an alias.
and them pasting that into Gam on windows (it just slow but for my small staff it worked.)
Not the cleanest but it works -- Hopefully I can get a script made to to take everyone in the staff OU and automatically verify that they have an alias that matches.
Thanks,