1) First, you need to enable “New Services” by opting in to new features.  Here are some instructions —

New Services

Periodically, Google launches new services (like Google Sites) into the Google Apps bundle. This setting will automatically enable these new services for your users at time of launch. However, when you initially enable this feature for your account it may take up to one day to take effect.

To opt-in for new features:

  1. Log in to the Google Apps administrator control panel.
  2. The URL is https://www.google.com/a/cpanel/primary-domain-name, where primary-domain-name is the domain name you used to sign up for Google Apps.
  3. Click Domain settings.
  4. Under the General tab, and in the New services and features section, check the box next toAutomatically add new Google services.
  5. Click Save changes.

Pre-release Features

By selecting this option, your users will be able to see and use new services and features at the same time as consumer users of Google’s applications. We sometimes delay the launch of features like group chat and colored labels to Google Apps accounts because we want to ensure that all the features we bring to the Google Apps suite are useful and stable before providing them to our business, education and organizational users.

To opt-in for pre-release features:

  1. Log in to the Google Apps administrator control panel.
  2. The URL is https://www.google.com/a/cpanel/primary-domain-name, where primary-domain-name is the domain name you used to sign up for Google Apps.
  3. Click Domain settings.
  4. Under the General tab, and in the New services and Pre-release Features section, check the box next to Enable pre-release features.
  5. Click Save changes.

Your users will have access to a new feature at the time of the initial launch, rather than when it rolls out to all Google Apps accounts. These features should be considered in testing for Google Apps, and we are unfortunately unable to offer support for these specific features.

Please note that you can edit your selection in the future. It may take up to a day for the change to take effect in your users’ accounts.

2) Next, each user needs to turn off  “Conversation view” in your Gmail “Settings.”