Daox is still around.
Natalya's thread:
https://ecomodder.com/forum/showthre...ght-34014.html
This one you linked is correct for both brake and clutch switch:
https://www.insightcentral.net/forum...-walkthru.html
^ How it works is basically that there's a button on the brake and clutch which are activated when you press these. You can add a parallel button which lets you do it manually without having the hold the pedal in.
And, that's correct on how to take care of the battery - to my knowledge.