Remap CAPS to be either CTRL or ESC depending on if you are holding it down or not. Tweaked For AutoHotkey v2. Original from https://superuser.com/a/581988

caps_2_ctrl_or_esc.ahk

#Requires AutoHotkey v2.0

*CapsLock::
{
    Send "{Blind}{Ctrl Down}"
    global cDown := A_TickCount
}

*CapsLock up::
{
    ; Modify the threshold time (in milliseconds) as necessary
    If ((A_TickCount-cDown) < 150)
        Send "{Blind}{Ctrl Up}{Esc}"
    Else
        Send "{Blind}{Ctrl Up}"
}