Ability to provide configuration files (e.g. settings.xml for maven, XML, groovy, custom files,...) loaded through the UI which will be copied to the job workspace.
Scriptler allows you to store/edit/execute Groovy scripts on any of the nodes... no need for copy paste Groovy code anymore. Beside administer your scripts, Scriptler also provides a way to share scripts between users via hosted script catalogs on the internet.