Undo Option

## User Story

As a user, I sometimes make mistakes \(which can cause my flux sync to break\) or I don't realize what clicking on something in the schema browser or result options will do and it causes a change in my flux script that I do not want\. I would like a way to undo changes so that I can correct a mistake\.

## Acceptance Criteria

- A method will be available within the script editor to initiate an "undo" \(button, hotkey, etc\.\)

- When an undo is made, the last change that was made will be undone in the script

- The undo will also erase the last schema or result option selection if that was the last thing done; if a schema selection or result option selected resulted in a change to the script, then that change will also be undone

## Notes

- Multiple\/historical undo not in scope for this story \(possible enhancement in future\) \- only an an undo of the very last change\.

- Requested by Adam