After you enable the ESXi Shell in the direct console, you can use these below combination of ALT + Function keys to access the Direct Console User Interface (DCUI) of an ESXi host:

ALT+F1 = Switches to the console.
ALT+F2 = Switches to the DCUI.
ALT+F11 = Returns to the banner screen.
ALT+F12 = Displays the VMkernel log on the console.

You can also access the DCUI from an SSH session.

Run this command to access the DCUI from an SSH session:

dcui

To exit the DCUI in SSH session, press <fc #ff0000>Ctrl+C</fc>.