eRoom allows you to easily add new users. Those users can be added as Hosts, which means that they will be able to host and create their own meetings.
To add a new user, go to eRoom > Add User, and on the new page fill in the necessary information and save.
Please note that you can add users in accordance with the Zoom Plans, so they will be active for the chosen plan. More information about Zoom pricing plans you can find here: https://zoom.us/pricing
On the Users page, you can see all the users in your account.