How to enable Gmail Preview Pane?

  1. Log into your Gmail account, go to Mail Settings – Labs, and enable Preview Pane (scroll down to see the Preview Pane).

  2. Click Save at the bottom of the page. Gmail will reload and go back to the message list.

  3. Now you can see a new icon on the top right. Just click on it and select your preferred split mode: Vertical Split or Horizontal Split. Note: You can always disable this feature by selecting ‘No Split’ option. Hope you’ll enjoy this post.