I use AWS Shell which is an integrated shell for working with the AWS CLI.

Navigate to ~/.aws/ on a mac. If you are on a windows, you will need to google the path. In this directory you will see .credentials and .config.

Open .credentials in your editor and you should see something like below.

If you already use the AWS CLI then you should already have a default profile with your tokens. Below we have added a new profile user2

You will also need to update .config with the below contents, yours may vary.

Now load the new named profile. For more information about named profiles.