Use request body parts in Response

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1

My question:

Is there a way in fake server “Example” to use some part of the request body in the response ?
For example if I receive:

{
  "type": "sometype",
  "object": {...}
}

I would like the example to respond :

{
  "object": {...}
}

It would be even better if I could modify some part of object, like “object.status=‘processed’” before sending the response.

I don’t see any pre-script for examples (I use “x-mock-response-name” header to identify the response I want)