The classic Paint is now deprecated and may be removed in future updates of Windows 10. As opposed to the old classic Paint 'program'. As part of the creator's update to Windows 10, Microsoft has introduced Paint 3D, which is a modern Windows app. They have heard your plead all the way to Washington.
Although this does not directly address the specific question of how to do this in the version of Paint found in Windows 7, it does address the question of how to do this in Paint in general, which is exactly how the question was posed.
