Web IDE Client Side Evaluation

Has anyone been able to turn on Client Side Evaluation for the Web IDE?

The documentation states that you can enable it through the admin settings panel. Yet I do not see any admin settings link–despite being a project/repo owner.
Has anyone been able to enable CSE? How were you able to access the Admin settings page?

Turns out I was missing a main entry point in my package.json file. Things are now working.