It would be great to have the option to backup each file on save.
This option is present in Notepad++ and I really like to have this feature.
Background: using sshfs or WebDrive to connect to remote computers,
sometimes saving fails. In these situations it's great to have a local backup
Specifying backup-suffix or directory (I keep a local directory for all backups,
named by filename.suffix-DATE (default in Notepad++) would be nice.
This option also helps if someone overwrites your changes without refreshing
the file first - some editors don't scan for changes... ;-)
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