second password and ban yourself from chatting

I have some issues to express. excuse me in both grammar and semantics because I'm from another country and not good at English. First, I thought, why don't you create an extra layer of security for our account, such as the second password? I used to play a game called "Gunny", it also needed skills, equipment and treasures, ... and the special thing was that it had a second level of security called a "treasure chest lock". This is the same as when you have logged into your account, then you want to enter the treasure or make a transaction, you must continue to enter one more password to confirm you are the account owner. in case you carelessly forget to log out of other devices and be touched by others. The second problem, can you create a setting for "disable chat for yourself" or the function "can chat but not visible to teammates"? Oh, I heard a lot of my friends complain about them being toxic too much in the game and can't stop it. instead of being reported and punished by Riot, this way they can punish themselves but not affect others. I look forward to hearing from you guys. Thanks very much!