If you are not seeing data populate under Screenshare, that means your devices are not running Shift content. This could be due to two different issues:
Your device is offline
Head to the "Device Manager" section in Shift Manager to view your device health.
If your devices are offline, you can check out this troubleshooting article on how to fix your device
You do not have any content scheduled for your screen
If your devices are online but you do not have any content populating your screenshare chart, you may not have content properly scheduled for your Shift devices. To remedy this, you can create spotlights. See this article on how to create a spotlight.
If you want to adjust the breakdown of screen time allocated to each feature, you can customize your playlist templates to better align with your business goals. Learn more about playlists here Playlists Overview.