Board Thread:The Quarters - Q & A/@comment-69.165.162.192-20140808225054/@comment-24185151-20140810090925

There's also a work-around for monthly and even yearly lists by creating a dud challenge for your party and using that as a template. :) So you create a challenge, add the tasks that you need to complete every month/year. Then as a new month rolls around, you can just add the task from that challenge and exit that challenge whilst keeping your tasks.