As soon as an edit has been made, a new draft is created and will save automatically as you work. At any point in the editing process you may exit the Workflow editor and your draft will be saved.
When you are ready to make your changes live, click
Give your Workflow version a name. This will appear on the Workflow Dashboard to help you keep track of what changes you have made.
Your changes are now live. All open and new submissions will now use this Workflow version.