JOE should have an undo/redo function

Current Situation

• Modifications effected with JOE cannot be undone.

Desired Behavior (first alternative)

• As undo/redo is a common and useful functions for any editor, this feature should be added to JOE.
• The undo stack contains
  • Actions on items like job, job chain etc.:
  • deleting an item
  • renaming an item
  • adding an item
  • Changing values of attributes
  • The undo stack is only available for open files/folders

Desired Behavior (second alternative)

• Undo/redo does not provide a modern usability as the functionality is somewhat limited either in the number of operations, the type of operation, or the point in time, e.g. before modifications are stored.
• An alternative could be to store each modification automatically, no further need for a "save" button.
• Instead of undoing individual operations for each implicit "store" operation a savepoint is created and can be used to restore the configuraiton to that version.
• The idea is not to undo operations, but to use files and differences betweeen savepoints (diffs).

Maintainer Notes

• This feature is not intended for immediate implementation, however, it might be added to a future release.
• Please vote for this issue and let us know your feedback.