Studyo Insights is divided into two areas: metrics and management. By default, when connecting to Insights, you will see metrics and will have access to these sections in the left panel:

To manage your school, click your name in the top-right to open your profile menu and select "Manage this school". Available sections will change to:

Any hyperlink you click will navigate back to metrics. Clicking a section, a teacher or a student will show metrics for that entity. To modify them, locate instead the three vertical dots at the end of each row.