Currently, the feature to split L7 (Last 7 days), L14, and L28 metrics by different groups, segments, or cohorts is not available.
This functionality is under active development, and considerations are being made to include it in future updates. As of now, users looking to analyze metrics by these specific time-bound parameters will not be able to use the 'Group By' feature to disaggregate the data by properties such as user type, geographical location, or other custom parameters.
This limitation applies to the built-in metrics within the platform. Users are encouraged to stay tuned for updates on the development of this feature, which aims to provide more granular insights into user behavior and metric performance over specified time frames.