I am still trying to figure out how to use Grid 12c. If I have set up both a preferred credential and a named credential for a host, how do I alternate between using them. I know that you will automatically be logged in with preferred credentials,, but what if occasionally I would like to use named credential instead. Where do you change the credential you are logged in with?
When you perform an operation that requires OS credentials, such as running an EM job or executing a host command, you will have an option to use the preferred credentials, the named credentials, or to enter new credentials and save them as preferred credentials or named credentials.