Can''t complete setup. Keeps asking to add admin

I’‘m going through the setup of 3.1.1, and I’‘ve configured it to use LDAP instead of storing users in a database. I’‘m at the point where it’‘s asking for admins to be added. The only clickable button is Add. There’'s no Done, or Next, or Finish. I just keep adding more and more Administrators without being able to complete setup.

The problem was that wildfire.xml wasn’‘t writeable. Altered the permissions and I’'m on to the next step.