Thread:RRabbit42/@comment-33205717-20180923183653/@comment-961279-20181119072224

You have to be an administrator to block someone from editing. I think a Content Moderator or Discussions Moderator can ban someone from the chat room. Since I'm an admin, I can't promote someone to that same level.

For "put view source", do you mean how do you change your editor to show the page code instead of the other modes that are more drag-and-drop? If so, that's in your Preferences under the "Editing" section. Look for "preferred editor".