In some cases - such as specific sizing, similar content with minimal edits, a starting reference point, etc. - a duplicate tile or section is helpful. To achieve that, simply duplicate the tile or section to get an exact copy that you can edit as needed.
To duplicate a tile
In your Site Editor, select the tile that you wish to duplicate. (You may need to click twice)
Click the Duplicate button in the left pane.
The duplicated tile will be added as the last tile in the section.
To duplicate a section
In your Site Editor, select the section that you wish to duplicate.
Click the Duplicate button in the left pane.
The duplicated section will be added below this section.