This command leads to dialog Special backup parameters, where you can specify:
·That the files will be stored in compressed format.
·That the backup will be checked automatically, either with checksum, or by comparing files in backup and on PC.
·Stratesave's action when it encounters a directory it can not read or a locked file.
These settings are coupled with the selected period, or the period detected by time plan. The menu is disabled, if the period is not defined, because the log was not yet loaded from backup.