When looking at a particular clients metrics, you can easily sort by certain collections to easily see the info you want to look at.
Go to your Client page and find a particular client.
Hover over their row and you'll see a small graph icon appear on the far right side of their client row.
Click on this icon and you'll be taken to the client's metrics page.
You'll see all the metric cards for this particular client with tags under each card for your collections.
Click on a tag you'd like to sort by and just those cards will be shown.
Hit the clear button on the top left to go back to viewing all metrics.
You can only view one collection at a time. If you have a mix of photo and numeric metrics within the same collection, they will just show up on their respective tabs.