Retention Policy

Hi, it´s a Image Backup and I want do make a Full Backup on Friday and Incremental Backups on Monday, Tuesday, Wednesday and Thursday.
Next Friday a Full Backup and so on.
On the next Friday I want to delete the first one.
I´ll have always 2 weeks.
How can I configure CloudBerry Backup Desktop?

Configuration attached.

Set retention policy to 2 weeks

Thanks, Alexander.
As I didn´t receive any notofication, I thought that nobody had answered.