title: Is it possible to manually trigger a stage when using YAML Azure Pipelines?
body: <p>With Azure DevOps release pipelines, it is possible to re-deploy a stage that either failed or succeeded. With the new Azure Pipelines in YAML, I don't see any way to do that from the UI other than re-triggering the whole pipeline. </p>
  
  <p>Is that intended? I would expect to see a "re-deploy" or "re-run" button on a stage like we had with release pipelines.</p>