Appassure base image frequency

Hi all..

I have been testing  appassure,  I know the first backup is  a base image, and then it run incremental snapshot. I can force a base image, but how can I configure to run a base image every X amount time or at X day of the week?

this came up, as I am testing only the app. I need to free up some space, but when you delete a base image it will delete all the incrementals until next base image...and I guess the base image is like a "full backup" which I would like to run at least once a week..

thanks