Drawing Lock is a useful tool that makes your drawing safer by turning a drawing into a whole block. People can’t explode it or modify the objects of the original drawing, thus we can prevent others from modifying the drawing.
LAYISO command has an advantage that it’s quick and direct effect and can be used directly to select the geometric object to be displayed or edited with other layers isolated.
CAD users can put different geometric objects on different layers and control the color, linetype, lineweight and other properties by customizing the layer properties. The properties of some CAD objects are set bylayer by default and putting those objects on the specific layers will save you time and there is no need to customize them respectively.