Describe how to use the 'mirror' command in Solid Edge.

The 'mirror' command in Solid Edge is specifically designed to create a duplicate of a feature or body across a selected plane. This feature is particularly useful in 3D modeling because it allows for symmetrical designs to be created efficiently. By selecting a plane, such as the front, top, or side plane, you can produce a mirrored copy of the geometry, ensuring that the new feature is an exact reflection of the original across that plane.

This functionality is beneficial for maintaining design integrity, as modifying the original feature will automatically update the mirrored counterpart in most cases, which saves time and effort during the design process. In practice, the use of the mirror command enhances productivity by allowing designers to quickly replicate complex shapes without the need to individually recreate each piece of geometry.