Update to clarify the question:
We would like to run a custom script on the built branch manually. That script will do some basic things like copying some files from the build folders to the network location. We don't need to run this automatically after every build, but manually, by clicking a link or button on the webpage.
Basically, I would like to run a custom script that will do some actions for the built branch on this page. If not, what would be the closest alternative to achieving this?
Thanks