Using ByLayer and ByBlock to Assign Display Values

You can set component display properties by referencing the attributes of a drawing layer (ByLayer) or a block definition (ByBlock).

This method is less direct than setting specific values, as shown in the following example for color selection.

If you click in the...	The component...
Layer column and select a specific layer	Is displayed in the color assigned to that layer.
Color column and select a specific color	Is displayed in that specific color.
Color column and select ByLayer	Is displayed in the color specified by the Layer column.
Color column and select ByBlock	The software determines if you made changes to the AutoCAD Layer Properties or AutoCAD Color Properties. if you made changes, the component color reflects those changes. if you did not make changes, the component is displayed in the color specified in the Layer column of the Display tab.