Motocron uses menus to organize your access to Reports, Entry screens, and Setup. Canceling an entry will usually return you to the main menu or the previous menu. The main menu and submenus have buttons at the bottom for Help and About, so you should never be more than a click or two away from more information.
There are slight differences between browsers and between desktop/laptops and mobile devices. When using a conventional browser such as Chrome or Safari or Internet Explorer, there will usually be a left navigation panel visible so that you can get back to the main menu at all times. When using the Portal App on mobile devices, that navigation panel is usually not visible, so you need to rely on the application buttons and cancellation fields in order to get back to menus.