In Hook’s Shortcuts preferences pane you can configure
Each shortcut can be enabled or disabled with a checkbox.
Configurable shortcut: Show Hook window
The default keyboard shortcut for showing Hook’s menu bar window is ⌘⇧SPACEBAR. That is: spacebar key while holding the shift and ⌘ keys down together at the same time.
This is the command to use to invoke Hook.
You can assign a different global hotkey or key combination with which to invoke the Hook window. This will override any other application which uses the same keys, so choose keys which won’t conflict with anything important. If you uncheck the box it will disable the hotkey.
Configurable shortcut: Show Hook menu bar window
You can also configure a global keyboard shortcut for showing Hook’s menu bar window.
List of keyboard shortcuts for Hook commands
Hook has many keyboard shortcuts. They are listed in All Commands & Shortcuts – Hook. Reading that document is an excellent way to learn what Hook can do for you.