I am using fyers for almost 1.5 years now.Since the account was opened I was assured that we are soon introducing kill switch option.I have a long trail of mails and DM on Twitter regarding the same issue.The reply whic always comes is that we are in the process of the same.You have a team of engineers who can process the request of kill switch within 30 mins but u are unwilling to do so because then u will not be able to eat the brokerage by overtrading.This is how a company works not the way their consumers want.although i am switching from them to some other broker.pla do suggest someone with this feature