Make all the DataPages in a segment consistent by modifying the layout, appearance, and localization settings.

1. In the Designer view, in the DataPages panel, click a segment label.
2. In the right panel, in the Layout section, click the sections, such as the header, footer, or side panel, to display or hide them on all DataPages.
   

   Note: By hiding sections you do not remove the content that you add for these sections in the template. If you decide to make a section visible again, the section appears with all the content that you added before.

   Result: The sections that you hide change color and show the eye  icon. 

3. In the Appearance section, select the theme that you want to apply to this segment.
   Result: The template canvas changes to match the theme that you select. 
4. In the Localization section, select the language, date and time format, and the time zone for this segment.