I think the interface is just wrong for what you're trying to do. You should have separate sections for different actions. Something like the interface used for System>Preferences>Keyboard>Layouts>Layout Options would be ideal. System>Preferences>Keyboard Shortcuts is alright too, but I'd like to be able to select an item to see a detailed description without toggling whether its box is checked.
I think the interface is just wrong for what you're trying to do. You should have separate sections for different actions. Something like the interface used for System> Preferences> Keyboard> Layouts> Layout Options would be ideal. System> Preferences> Keyboard Shortcuts is alright too, but I'd like to be able to select an item to see a detailed description without toggling whether its box is checked.