After you have properly configured your White Label system as described in this article:
https://docs.hetrixtools.com/configure-white-label-reports/
You can access any of your monitors’ White Label reports from their Action drop-down menu:
Just make sure the report is Public first, so you will not get a 404 error.
This works for any of your Blacklist Monitors, Uptime Monitors, and Bulk Reports. The process is all the same for any of these.