Download the module and modify ROOT_AWSstub.ps1.. Contribute more on Github.
You should also download secret keys from AWS, define Set-AWSCredential for the default profile, and install modules A WS.Tools.EC2, AWS.Tools.RDS, AWS.Tools.S3, AWS.Tools.CloudWatch
You will also need one of the login.ps1 files, if you don't have one already:
Audit file, audit.ps1 - is available in 3 different sample versions: