Length of time in a cohort graph
In a cohort page, we currently have the number of users, and the number of users joining and leaving a cohort over time.
I am interested in how long the users currently in the cohort have been there. This will help me know if there is a constant turn over of users in the cohort, or is there a core of users who enter the cohort and never leave.
One way to do this would be to add a third graph of 'time in cohort' to the top section. Or add it as an option in the bottom section. However in the bottom section it would have to be a full spread of time in cohort, not just the top 3 as is available at the moment.