Query Parameter Enum with Description

Hello,
I am stuck and cant figure out how to achieve the below logic. I have a resource called /display which users post to all the time. I want to allow them to also use specific querryParameters on the /display resource enum: [routing,refresh,stop] . This appears to work fine, but i want to enhance the documentation by providing examples and description for the new querryParams i am defining. How does one do that?

/display:
  description: displaying all kinds of actions
  post:
    body: 
      type: Entry
      example: !include examples/display-entry-example.raml
    queryParameters:
     action?:
      enum:  [routing,refresh,stop]
**>      routing:
**>        Description: this routes
**>        body: 
**>           type: Entry
**>           example: !include examples/routes-entry-example.raml
**>        refresh:
**>        Description: this refreshes
**>        body: 
**>           type: Entry
**>           example: !include examples/refresh-entry-example.raml
**>        stop:
**>       Description: this is used for stopping
    responses:
      202:
        body: 
          type: Response
          example: !include examples/display-entry-response-example.raml