Flex Insights data can be separated for Supervisors by using various approaches such as dashboard permissions, variables filters, or embedded dashboards with filtering values automatically filled from Taskrouter worker attributes. Each organization has its own unique structure and it's up to them to pick the right approach to display just the required set of data. The main goal is to hide data and each method has its own advantages and manual work involved. Supervisors can see different data depending on their role and permissions, and with the use of Flex plugins, Functions and advanced Studio flows, it's possible to enhance analytics data.