You can solve the problem by cutting a large opening in a basement wall and adding a window that meets code requirements for egress. You'll find contractors willing to do this work, often for between $2,000 and $3,000, or you might consider doing it yourself.
Caps Lock is a button on a computer keyboard that, when pressed, causes all letters to be generated in capitals until deactivated. It is located in the position of a similar Shift lock key (and sometimes a Ctrl key) found in some other keyboard layouts. It is usually a toggle key: each press reverses its action.
Well, some of the conventional laptops used to be consisted of 'scroll lock' button. But nowadays laptop manufacturers don't add them in their laptop keyboards. So you won't be able to find it, neither there are any key combination by which you can trigger 'scroll lock'.