Once you have chosen a site template (template or design) and started your site, take note that it is not possible to change it.
You have two options:
1) You can choose a new design and start over.
2) You can modify your current template using the Template sections designed by our team.
This can help you redesign a site that will meet your needs.
To access Template sections, click the Sections tab at the left of the editor, then on Add a template section.
There are different themes ranging from text sections, menu, team presentation, home page, etc.