You will need to set up a new custom report to view your custom dimension data.
1. Navigate to Customisation and then Custom Reports
2. Add a new custom report.
3. Click on “Add Metric Group” and select sessions or any other metric by which you want to view the report.
3.In the dimension drilldown select the custom dimension you want to add. We will create a location report first.
3. Click save and view the report
4. You can similarly create a custom report to view the "Player" (individual screen data).