Atmos - Seems like many maintenance tasks require EMC support?

I'm new to Atmos and have been working to setup a private cloud environment.

We purchased Atmos as a replacement for our Centera arrays - we didn't use the compliance component and only used the Centera arrays as repositories for the EMC Cloud Tiering Appliance (formerly the File Management Appliance [formerly Rainfinity]).

In setting up the Atmos array, I've discovered that many of the basic tasks that I would expect a customer to be able to perform require EMC support, or are just not supported:

• Changing the IP address of nodes
• Deleting Tenants and Subtenants
• Deleting Authentication Sources
• Upgrading the software

Currently, the array was setup with Atmos 2.0.3.76102 and I see that 2.1xxx is out, but I don't see a way to retrieve the update and apply it.

To change the IP address of a node we had to open a support case.

I opened a case for deletion of Tenants and was told it was not possible to delete tenants, but you could remove the administrative accounts for the tenant and remove all nodes to effectively delete it.

When creating subtenants, there is no selection box for the Authentication Source when using remote authentication.  So, the subtenants are set to an Authentication Source that is not valid.  And since I can't delete an Authentication Source or a subtenant, I'm not sure how to proceed to correct this issue.

Are other Atmos administrators also having this much difficulty with management of the array?

Is there some hidden commands/manual out there which provides more details on management tasks?