This feature is available in all editions.
I created a new member and assigned the System Admin role to their account. When they log in, the Project Navigator shows No Project Selected. But there is no project to select.
When you created the member's account, you were required to select their Admin Privileges role. This role only establishes the user's the base set of system access. It does NOT grant them access to any projects.
To grant the member access to project, you need to do two additional steps:
Give them access to the project(s) they need to work on. This displays the project(s) in the Project Navigator.
Assign them a project role. This determines what they can do (e.g., create, view, and modify project assets) on the project itself.
For detailed instructions on how to do this, see Assigning Project Roles.