Quote
Typical scenarios
Select Configure Workstation Backup and click perform
Windows Share
With Server backing up to a removable or shared drive in a workstation, with a weekly full backup on Friday and subsequent daily incremental backups & you wish to retain 2 backup sets on each disk, with backup to start at 8pm and finish at 8am.
End Quote
Above from the wiki is eactly what you want to do excpet it also is setup to retain 2 backup sets.