Display enum select box to update a request body parameter

Is it possible to define an enum to update a property value on a request body? So a select box would display and the user can select the option. In the example below it would be either `Happy` or `Sad`.

requestBody:
    required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Pet'
            examples:
               Pet example
            value:
                pet_name: Tony
                mood:
                  enum:
                    - Happy
                    - Sad

When selecting the enum, it would update the request body:

{

    "pet_name": "Tony"

    "mood": "Happy | Sad"

}