Once the new page has been created, it will be displayed in the Pages Widgets section. It will then be available to drag and drop into the Design Canvas.
For example, imagine a scenario where a page is created using the Grid widget. The icon can be dragged from the Widgets section multiple times, dropped under different tabs. Each button is pointing to the same web part page.
In addition, once a new page is created it appears within the “Start with” drop-down menu when creating a new page. This makes it straightforward to create variation pages based on the same type.