Filtering your Retention report by Event or People Properties is only available once a particular Event has been selected. It’s not available for the "Anything" Event option as a means to preserve processing speeds and report reliability.
That said, there are a few other ways to get this data:
- Instead of using “Anything,” create a Custom Event to look at a few Events you’re interested in and use that Custom Event in your Retention report. Custom Events can be filtered in Retention.
- If the Property you’d like to segment by stays consistent over a user’s lifecycle, consider using a First Time Retention report instead. Look at a cohortizing Event filtered by the Property you’d like, then choose “Anything” in the second Event dropdown. For example, if you want to see how often people in Chicago use your app, choose Signup complete as the first Event where city is Chicago, then choose Anything as the second Event.