Builds on the Archive @done in the Editorial Workflow Directory.
This workflow appends @done tasks in a TaskPaper document to the top of a separate CompletedTasks.taskpaper file in Dropbox. Attaches the date that the new archived tasks were added.
It then returns to the original file.
http://www.editorial-workflows.com/workflow/5810637028458496/dMt1PRVgU-8
There is a sister workflow, Select Archive, that selects the archived tasks at the bottom of the original file In case you wish to delete them. However, it leaves the deletion step itself to the user as a safety precaution.
http://www.editorial-workflows.com/workflow/5882227254624256/9u-FUc2loSs