The Backup/Check Out Options page of the Application Setup can be changed from within any ReliaSoft desktop application.
Standard Database Maintenance applies to standard database files (*.rsr20) only. It allows you to automatically save a backup of a database in the location you specify when you close the application. The backup file will be named after the database file with the backup date appended (e.g., RSDatabase1_2020-01-15.rsr20).
You can specify how many days of backups can be automatically saved (up to 10), but note that only one backup will be saved per day (e.g., if you open and close the same database three times in one day, only the final closing of the database will be saved in the backup folder).
Note that you can also create backups manually at any time by choosing File > Save As. For more tips on keeping databases running smoothly, see Backups and Database Maintenance: Protecting Your Data.
Check In/Out specifies the default save location for projects that you check out from a database.