Should be possible, but you’d probably need to dive into the code.
I’ve naively tried and changed the default in this line:
wm.SCV_started = bpy.props.BoolProperty(default=False)
(in __init__.py ) to True.
Which did get the addon running on start-up, but it didn’t show any key presses, I had to stop it and then start it again to actually show something…Must be something else you also need to change…
But the best thing might be to ask Jayanam himself.