Configuration - More settings - Keyboard setup

Here you can configure keyboard shortcuts. Standard keyboard shortcuts may use 'Control' and/or 'Shift', global keyboard shortcuts require you to use 'Control' + 'Alt', so only 'Shift' is available for modification.

Enable global keys (Ctrl+Alt+<Key>)
Activates global key support.
Global keyboard shortcuts can only be claimed by one application each, and only that application will respond.