You can create a custom layout template from a page you have already designed in Page Builder, or you can create a layout template from scratch.
Tip: If you want to use a layout from one page to create another within your site, you can duplicate the page rather than saving a layout template. Duplication creates a copy of your current page, including metadata.
To save an existing page in Page Builder as a custom layout template
1. Click the Currently Editing Page button in the upper left corner, then choose Save Template.
2. Give the template a name and click Save.