Script Server: edit current script on the fly

As a user, I would like to be able to edit the currently executing script in the script server on the fly.

Example use case:
- User starts a scan
- Realizes the scan parameters are too coarse/fine
- Pauses script
- Edits parameters in "currently executing script" window
- Resume script in/close to same place

Not sure whether this is currently feasible/possible in Nicos?