Keyboard shortcuts about owlkettle

[PhilippMDoerner]

General question to see if I'm understanding how shortcut works correctly:
Basically it's every time:

• Create a controller
• Define a scope for it (this widget, parent widget, global root widget (window?))
• Create a shortcut struct out of hotkey button represented as string and its action (one of which can be a signal, defined as signal(<signalName>))
• Register shortcut struct with controller object

Right?
That's just for my understanding of the entire thing.

Looking further though, would it be possible to generally enable global Shortcuts for all kinds of Widgets? Or rather, is there anything that speaks against that?