This is the main hidden menu where you have access to every function
even when the device is locked down.
In the System menu you can trigger all kinds of system functions like:
Start android settings, reboot, shutdown, and more.
In the Applications menu you can start other useful applications like:
File explorer, SuperSU, wifi adb, and more.
In the Settings menu you can set the application settings like:
Show console window, Show debug LOG,Cache content, and more.
In the Functions menu you can start functions of the application like:
Clear cache, Lock/Unlock device, Update device, and more