Customizing Swagger UI to add an additional functionality

When we send a request on an endpoint from the swagger ui, we get the response in a code block. Now here I need to do a customization. I need use that response and do my own modifications and then display them in the codeblock(or wherever possible).

Now here I have some questions.
1. Is this a feasible thing to do.

2. If yes, then can you please me navigate me around the code so I can know where and how the change can be made.

3. If no, then what could go wrong here?