These options control the creation of backup files when you save a modified file to disk. You can control where backups are stored, how many old backups to keep and options for controlling the style of the backup file name.
"CRiSP overall is a terrific text editor. It contains the changes to Brief which I would have liked...It is nice to be able to at last have a good BRIEF like editor for Linux machines. In my reports to the minerals exploration industry, I have extolled the virtues of CRiSP."