UTop/user_config/usr/share/utop/key-bindings.json

{
    "keybindings": {
        "help"                   : "F1",
        "guake_key"              : "<Shift><Control>KP_Insert",
        "focus-search"           : "<Control>s",
        "focus-apps"             : "<Control>a",
        "focus-terminal"         : "<Control>t",
        "load-interactive-debug" : "<Control>d"
    }
}