You can set the autosave feature in your design, which helps in saving your work periodically. The key variables to autosave the database are present under the File_management section in User Preferences Editor. You can open this using Setup > User Preferences.
This option must be set before starting the layout editor.
By default, this option is turned off to save time. It requires a restart.
The default name is AUTOSAVE. Do NOT provide a file extension. The layout editor will use the appropriate extension based on the type of database under edit. It requires a restart.
The default time is 30 minutes. The minimum is 10 minutes, and the maximum is 300 minutes. It requires a restart.
Cadence Design Systems
For instance, a user works for 8 hrs and save time given to 20 min. By the end of the time, there would be 24 copies. Is there a way where only the last 3 backups can be saved and the rest all are auto-deleted? which would reduce space and also confusion.
use variable ads_autosaverevs and specify the number of versions you want to maintain for AUTOSAVE database files.
You can find this variable in Setup > User Preferences > File management > Versioning