How do access groups work? All options missing.

I guess I will open a support ticket, since this doesn't seem to be me missing something obvious, and nothing jumped out to the community.

But I will make a comment of where I left off for clarity:

1. I created an Access Group. The group itself has no features other than Name, Tenant, and Description. I left Tenant blank because I have no idea what it is. There are no permissions to edit here.
   
   
2. On the role I want to enable granular access to modules, I went to the Modules permissions, went under the "My Modules Toolbox" section (below Access Groups) and checked the "Modules: Manage (Limited)" box, and saved the changes.
   
   NOTE: I believe this corresponds to your first link, the section "Configuring Modules Permissions" step 5 aka "To enable a user to have permissions for Access Groups within Modules". The only difference is that, in your documentation, this is happening during role creation. I'm editing an existing role. So I click Save instead of Finish.
   
   
3. I opened up the Modules section of the portal (I can do anything on the portal), filtered for the specific module I wanted to grant access to, and selected it. On the overview shown on the bottom of the UI when I've selected the module, I only see the usual tabs: Info, AppliesTo, Active Discovery, Collection, Normal Datapoints, Complex Datapoints, Graphs, Local History. I see NO Access Groups tab. When I edit the module itself, again, I see NO Access Groups tab at all, and there is nothing on the page.
   
   NOTE: this corresponds to your second link, "Assigning an Access Group to a Module" and I believe it would be Step 3, "Select the Access Groups tab" ... but no such tab seems to exist.

Anyway, I will open up a trouble ticket later this afternoon. I'm probably missing something. I just wanted to make the state clear. I'm sure I'm just missing something simple.

Thanks.