After successfully linking your AWS account you will be redirected to the Rules view. You now have the choice to Create a New Rule or create from a preconfigured Rule.
You will now find yourself navigated to the Rule Overview (pictured above) for the preconfigured rule. Feel free to inspect the Context, Trigger and Action by clicking on the presented badge buttons. You may also rename the Rule and add Rule Labels to append some identifying metadata to the Rule.
When you have completed your customisations of your Rule click the Save Rule button