s3-plugin advises the user to use the Snippet Generator to get started. However, I see neither s3Upload nor s3CopyArtifact steps in the step list dropdown on the Snippet Generator page (i.e. http://maurer.local:8080/job/ghc-multi/pipeline-syntax/). However, I am fairly confident the plugin is correctly installed as I see $class: 'S3BucketPublisher' and $class: 'S3CopyArtifact' in the Pipeline Syntax page (i.e. http://maurer.local:8080/job/ghc-multi/pipeline-syntax/html).