Steps

1. Right Click on any Network Request in the Requestly Network Interceptor

2. 

   Select the Rule you want to create.

3. Fill in the details of modification in the Rule Editor Modal.

4. Click Create Rule on the top-right in the Rule Editor Modal.

Testing Modification

Now when the same request is triggered again, the request will be highlighted. This indicates that the Requestly Rule is applied on the request.