Autosave every. When set, the current document is automatically saved after the specified period of time. Saving the model occurs only when switching from one command to another, and is not done while working within the same command, in order to preserve the model data integrity.
Create Backup copies. This flag sets the mode of creating backups on saving document files. The parameter can take the following values:
None – no backup.
On first save – A “.BAK” file is created on the first save of a document after opening it for editing.
On every save – The previous saved file version becomes the backup copy on every document save.
New on every save – backups are created on each save with different extensions, as “.B01”, “.B02”, etc.