Due to its frequent use, a Ctrl+Alt+Delete macro is preprogrammed.
Selecting Keyboard > Send Ctrl+Alt+Del, or clicking on the Ctrl+Alt+Delete button in the toolbar sends this key sequence to the server or to the KVM switch to which you are currently connected.
In contrast, if you were to physically press the Ctrl+Alt+Del keys, the command would first be intercepted by your own PC due to the structure of the Windows operating system, instead of sending the key sequence to the target server as intended.