Hi Michael,
Thanks for reaching out! In order to post in the support forums, users need to be logged into the account holding the license. There is not currently a way to add an additional email address/user to an account. If they would like to be able to login and post on their own, they would need to have their own license and account (or you could alternatively give them access to your account).
I’m sorry I don’t have a better answer for you here, but please let me know if you have any other questions!
Thanks,
Jennifer