Generate dummy data



I noticed Raml Api Designer is able to generate dummy data for an endpoint. The data is based on provided examples in the endpoint definition. I want to make the returned dummy data depending on value of query parameters.
e.g. if I have endpoint /user I return a list of all users. If I have endpoint /user?id=122 I want to provide data for 1 user. Can I achive that using Raml?