How to transfer from a Standard page to a Homepage?
Creating a page with the wrong page type is the problem usually committed by EComposer users. For example, you created the Homepage under the Standard page by a mistake. So you might want to switch from the Standard page to a Homepage instead of recreating the page from scratch.
The way to solve it is to save your page as a template first, then you can insert it from the My templates tab to any page type you want. Similar to when you want to switch between different page types.
Finally, please click Save the page and turn on the Publish page and Overwrite Shopify default homepage options.

