title: How to add available shared runners to GitLab project?
body: <p>Only one gitlab runner is available in my project. However, in the runner page I have multiple other runners listed. How do I add these runners to the project such that a runner will be randomly selected to execute the build? The runners are running in Docker containers and I am using a self-managed version of GitLab.</p>
  <p><a href="https://i.stack.imgur.com/PQ7i8.png" rel="nofollow noreferrer">These are the runners I have available</a></p>
  <p>Only runner1 is currently shown in /settings/cicd under Runners:
  <a href="https://i.stack.imgur.com/Es3Xd.png" rel="nofollow noreferrer">runner1</a></p>