This allows you to execute a scenario just like you had clicked the button on one of the Orbiters.
You will notice that the scenarios are grouped by Entertaining Areas and Rooms. The type of scenario is also listed. You have the option to test the scenario to determine if it is indeed functioning as expected or you have the option to edit the scenario directly from this page.
If you expose this website to the outside internet under Wizard > Security > Outside Access, then you will be able to login from any internet browser and execute scenarios just like you clicked the button on the Orbiter in your home.