[RESOLVED] How to add users to Watchers?

Hello,

I'm trying to add multiple users to Watchers, but I can't. Here's what I've tried. What am I doing wrong?

    function uAddWatchers(username) {
      //console.log("Username: " + username.login);
      
      // These attempts are causing the error
      //issue.applyCommand("add tag Star", username);
      //issue.applyCommand("star " + username.login, username);
      
      // These three add the user to the Visibile to list, not the Watchers list.
      //username.watchIssue(issue);
      
      //issue.applyCommand("star " + username.login);
      //issue.applyCommand("watcher " + username.login);
    }