Broadcast all keys mode

[thinus]

I don't see a broadcast mode option for HKN but it seems achievable within a script:

// global variable to store the current broadcast mode
<SetVar BroadcastMode 0>

// always pass keys
<Hotkey ScrollLockOn A-Z, 0-9, Plus, Minus, F1-F12 except W, A, S, D, Q, E>
	<SendLabel myApp>
		<Key %Trigger%> 

// pass keys only if broadcast mode enabled
<Hotkey ScrollLockOn W, A, S, D, Q, E>
	<If BroadcastMode is 1>
		<SendLabel myApp>
			<Key %Trigger%> 

// toggle broadcast mode when Pause is pressed
<Hotkey Pause>
	<Toggle>
		<SetVar BroadcastMode 1>
	<Toggle>
		<SetVar BroadcastMode 0>

Is this the correct way to go about it or is there a built-in feature for this?