You now have the ability to select multiple stores in order to review your metrics on the system. This can be done on a store level or a group level, if your stores are grouped/tiered.
To do this, you will need to go to Settings > Metrics, once you are here, you can select the stores/groups you would like to view metrics for.
Store example:
Group example:
*Please note that pro subscription is required for each store in order for this to be enabled.*