[Feature Request] Checkbox to _not_ run a pipeline upon new branch creation

We are running GitLab EE premium and we have some really long (multiple hour builds) that spin up infrastructure to complete test cases. When we create a new branch, it is significantly taxing on the environment, and we may want to suppress continuous integration until we're ready to manually trigger a build. I'd like to request a checkbox be added to the 'New Branch' screen in the web interface with an option like "Do not run a pipeline for this new branch". By default, every new branch gets a pipeline executed as far as we can tell. This could of course be triggered manually later if desired.