If you have a workflow you want to customize or to alter, you may clone the workflow and perform changes on the clone.
Doing this you keep your original workflow untouched. Cloned workflow is absolutely new workflow. That may be useful, for instance, if you want to perform some tests or experiments safely with different version of the workflow.
To get any workflow cloned go to All Workflows admin page, hover mouse over the row with name of the workflow you want to clone and click Clone link below the name.
Workflow will be cloned as a new workflow with all actions, triggers and settings. After cloning the workflow has Disabled status. Existing storage any type will not be cloned.
Note: New, cloned workflow will have its own default storage.