Here’s how to activate the Snapshot tab (workout summaries) for your platform, starting from the Account tab of your Dashboard.
Step-by-Step Guide:
Step 1: Click on the “Account” tab on your trainer dashboard. 
Step 2: Click “Customize Platform” on the left sidebar.
Step 3: Under “Client Dashboard”, make sure “Snapshot” is enabled.
Step 4: Save your new settings.
Now that you can activate the Snapshot tab for your platform, your clients will be able to see workout summaries based on the workouts they log.