
Change the interface of your Gmail inbox by activating the display of a preview pane of your messages.
Google’s messaging service offers the possibility of dividing the display of its inbox to display on one side the list of emails received, on the other, a preview pane of the selected message. If the function is old, it remains little known to Gmail users. Disabled by default, the manipulation to be performed to activate it has evolved over time and requires several actions from the user before it can be activated for good.
1. Go to settings
Go to your Gmail box. Access the Settings of the box by clicking on the cogwheel, grafted at the top right of the window.

Once in the configuration window, enter the Advanced settings by clicking on the appropriate tab.

2. Activate the preview pane
Scroll through all the options offered and activate the Preview pane option, displayed in the last row. Validate by clicking on Save the modifications.

3. Apply the dual pane display
Once the settings are saved, Gmail reloads the inbox. In principle, the display of received messages has not changed.
The activation of the preview pane must be done manually. To do this, click on the dedicated icon, “Activate / deactivate double pane mode”, at the top right of the inbox.

4. Choose the type of separation
If the native display of the dual pane is not for you, Gmail offers you to change it quite simply.

Click on the drop-down menu available next to the button dedicated to activating the double pane: Gmail offers you either to apply a vertical separation or a horizontal separation.
