Rated 3 out of 5 stars

This is an excellent add-on not only for back up, but for those with multiple locations. Here is a suggested improvement: This routine seems to only back up one Address Book or Calendar, allow the selection of multiple books and calendars for those of us that have several of these.

This review is for a previous version of the add-on (0.5.2). 

your suggestion is available since the 0.3.X you can specify an unlimited number of configurations, including automatic background sync