Copy and Paste Graphic Properties
With this command all the properties of the selected item are copied and stored for later use. This function applies to layer, color, line-type, weight and arrowheads. Copied properties can then be applied to other items of the drawing.
This tool can also be used via a keyboard equivalent: Option-click an item to activate it.
When you have copied the properties from an object, you can apply them to other objects. When the pointer is over an item the cursor changes to a paint bucket: click to apply the properties to that item. Click in a void region to quit the Paste Properties tool.
This tool can also be used via a keyboard equivalent: Command-Option-click (Mac) or Ctrl-Alt-Click (Windows).