An empty account tells you nothing. This page shows Meadowlark Aviation, a sample four-aircraft Part 61 flight school, so you can see the shape of the product before setting up your own: a Tuesday of bookings across three aircraft, the fleet with Hobbs and tach readings, engine time against TBO and the next annual due, the instructors and students who fly there, and the invoice a single lesson produces from the school's own rates.
Meadowlark Aviation is sample data, not a real flight school, and nothing on the page can be edited. Setting up a real school takes a handful of steps: your aircraft and their hourly rates, current Hobbs and tach, your instruction rate, and the people you fly with.