Let me show you how you can convert AMP to a Smart page and vice versa.
This process is quite simple and straightforward.
Converting an AMP page to a Smart page:
Go to the dashboard of an AMP page.
If you are not sure about where to find the page-type information, please see the screenshot below.
On the top of the thumbnail of every page, you will find the page's respective page type.
Once you are on the dashboard of the AMP page, you will find a three-dot icon just beside the publish button.
If you click that three-dot icon, you will see a drop-down menu. Select the option 'Create Smart Version' on that drop-down menu.
You will be automatically redirected to the smart version of the same page. That is all.
Converting a Smart page to an AMP page:
Go to the dashboard of a Smart page.
Once you are on the dashboard of the Smart page, you will find a three-dot icon just beside the publish button.
If you click that three-dot icon, you will see a drop-down menu. Select the option 'Create AMP Version' on that drop-down menu.
You will be automatically redirected to the AMP version of the same page. That is all.