Enable Preview pane

Preview pane is a built-in option of Gmail that enable you to split the screen so that you can view the message and email folder side by side (as in Thunderbird and Outlook). Preview pane is disabled by default in Gmail, and you can enable it by following the steps below.

1. Sign in to KUMail (Gmail).

On the top right, click Settings (gear icon) > See all settings.

2. Go to the Inbox tab.

3. In the Reading pane section, check Enable reading pane. Under Reading pane position, choose where you want your reading pane.

4. Click Save changes.

5. You can also choose how you split the windows by clicking Toggle split pane mode.

6. When you select Horizontal split, you will have your conversations on the top and messages on the bottom.

7. When you select Vertical split, you will have your conversations on the left and messages on the right.