Mogegg,
I have a 2016 Three wheeler.
Headlight switch is 2 position - all the way down for headlights on
With headlight on low beam
-- pull back on the stalk to flash high beams
--push forward on the stalk once to lock on high beams
--push forward on the stalk again to go back to low beams.
Don't know anything about the double reset.
That is exactly how my M3W headlights work as well, not had the double push reset but few M3W's are the same. If you flash the headlights or move between high and low beam you should be able to hear the relay clicking near the fuse box. If it's not clicking that could be the problem? It is when you get problems like this that you really could do with a full and easy to follow circuit diagram but, like the maintenance manual, it doesn't seem to exist.
You maybe don't hold this forum in high regard Mogegg but it is a better source of information than you will get anywhere else about the M3W. The information situation is far better now than it was in 2013 I can assure you, mainly thanks to TM and the sharing of information, experiences and solutions.