1. Make sure you are a superuser or admin
  2. Go to an existing 2sxc app module on a page, or add one and select an app
    It's important that you select an app, otherwise the admin-app won't know which app to admin.
  3. On the app you want, cycle through the ellipsis button till you see the gear-icon, then click on that. You can also shift-click, to open the app-administration in a new window app-adminapp-admin-dialog