Command : S3d_IsolateSelection
When you run this command, you can select several objects from the drawing.
These objects will still be visible, while all the other objects in the drawing will become invisible, regardless of the status of each object's layer.
Also, all AutoCAD objects will be hidden such as lines, dimensions, and blocks.
This way you can very easily continue to work on one part of the drawing without other objects obstructing the view because they are located in front of the objects of interest.
To restore the visibility of all objects in the drawing, you can at any time activate the S3d_ShowObjects command and then press <Enter> to display all objects.