Here's a step by step on how you can add a user and set up a credential ring
Step 1 - select Security and User Management
Step 2 - click in Add Credential
Step 3 - Enter the account details
Step 4 - Double click on the Credential Ring that you need to assign the account to
Step 5 - Select the account
Step 6 - Click in Add, then Next
Step 7 - Make sure the account is assigned to the Unmatched resources if you wish it to be the default account for everything, WSUS servers, domains, etc
You can repeat all those steps to add different users to the any resource you desire.
