Addiing own logic to Swagger-UI

Hello, im using the swgger-ui-express package to generate documentation for my project.My questions is how can i customize the logic of the documentation so i can use it in my particular way. For example i want to change the logic on a button which is generated from the *.yaml file. For example i click on that button and i generate dynamic id on a certain field everytime, instead of hardcoding a static id on the *.yaml file field "example: id".