Guide

1. On the email campaign's editor dashboard, find the section that holds the container you want to customize.

2. After that, hover your mouse cursor over this section and then click the 'Structure' button.

3. Head over to the right-side panel and locate the name of the container you want to edit.

4. Subsequently, enter your preferred width size or click the 'Add' button to increase the container width according to your preferences.

5. After completing these steps, the width of the selected container will be increased accordingly.