My list of requests for that editor:
- Confirm exit without saving
- Button to "Save and Run"
- Option to always save before exiting
- Line numbers, especially since error messages reference them
- Search for all scripts or search from the command line
- It would be handy to have version control, too, such as git or hg.
A lot of those could be eliminated if we could edit those scripts from the command line, using a simple program similar to vipw(1).