This is the main window of Agenda At Once that allows you to easily access all the functions of the application. 

With Agenda At Once you can add as many to-do items you want and this menu enables you to manage them all. 

Using this menu of Agenda At Once you can organize and manage the notes you take down. 

Agenda At Once will also allow you to schedule tasks and reminders using this menu. 

The Options menu of Agenda At Once will enable you to fully customize the application's behavior and appearance.