I believe we need to add this natively to AutomateWoo. In my opinion, the use case for cloning workflows is high enough and the experience with the Duplicate Post plugin is awkward enough.
When using Duplicate Post, you need to go deep in to settings just to enable it on workflows. Then when you duplicate a workflow, the duplicated workflow essentially disappears because we use custom post statuses for workflows. This means the post ends up in the "Drafts" view which isn't very obvious.