Terminal Computers from Penumbra Black Plague

[SwingsDarkCreeps]

I remembered phases from Penumbra Black Plague when the player could interact with "terminal computers" - "surfing" the desktop and entering into folders in order to introduce passwords for unlocking the doors. I wonder how can I make something like that...what do I need to do?(I'm curious about script as well);(I want to do this in my Amnesia CS)... hmm...if you guys can lend a hand to help with this I would be pleased and your reputation will grow as well because of me.