ShortcutActions in vaaclipse

Hi,

we are planning to implement the eclipse e4 Keybinding API in vaaclipse.

But we recognized that vaadin requires a keycode to register ShortcutActions. Is there a way to register ShortcutActions that trigger all keyevents at UI-level?

To keep traffic low, only keystrokes should be triggered that contain a modifier like CTRL,… or are F1,…

Thanks for your help,
Florian