[Snapshot Pro] Configure backups using Snapshot Pro and Amazone S3

Hi, hope you are having a great day!

I'm currently trying to create a situation where we create automated backup' s for all of our wp-websites using your plugin Snapshot. I want theme to be backuped every day with a max. of 7. Backups must be saved on an extern Amazone S3 solution. After 7 days i want the oldest backup to be removed etc. Can you tell me if this is possible? And how i can install this the correct way? In my opinion i've done that, but the backups doen't seem to get removed at this moment, leaving me with a lot off backups and storage on our S3.

Hope you can help me out!