Through groups and components, any edge, line, face, curve and surface in the model can be copied to the original position separately, and it is in the selected state for the next operation.
Curic Copies（Curic Copies）动画教程
Click the plug-in, directly pass through the group or component, and select points, lines, faces and other elements to complete the copy. The copied objects are outside the group.
组外随意就能复制线面出来很方便！