Workflow update file

When a template workflow is installed via marketplace, or local workflow import and the locally imported workflow is changed it becomes difficult to integrate updates to the template workflow into the imported workflow in the future.

It would be nice if you could import the workflow as a base, then make project specific changes to the workflow and save these changes as a workflow update file. Then later if the template workflow was updated you can import the workflow again and then import your project specific changes back into the new workflow.