title: How to create and add users to a group in Jenkins for authentication?
body: <p>I choose to use "Jenkins's own user database" security realm for user login as I couldn't use LDAP in my company.  And Google's OpenID has issue when you decided to change the hostname or port number to something else.</p>
  
  <p>And I use "Project-based Matrix Authorization Strategy" schema for my security.</p>
  
  <p>But I don't seem to able to create my own group, and add users to the group to manage the permission.</p>