Thank you for the help.
So I'm looking in preferences in the Waze directory on the SD Card now, but I can't spot the option yet. Do you know what the line is I'm looking for please? or what I should add to the file?
Edit: Ah brilliant crazycaveman, I just realised that you meant literally use Navigate to that string. The app is just restarting to enable the feature now. Thank you!
I selected Navigate, typed in ##@asr and hit enter
Restarted Waze when prompted
Selected Settings, then Voice Commands, and clicked Enable
Then back on the map screen I swiped the screen for the voice prompt to appear
I said the secret word and it asked me to say OK (albeit that wasn't obvious)
I said OK and Waze told me I was now a Monster
At every noise or touch ASR opens the voice prompt now though, seeming a bit eager