PEN # allows you to assign pen numbers 1-8 to graphic
entities for use in plotting files.

You can also use the PEN: parameter in the Status Window or
the Immediate Mode command, ALT-Z, to set the current pen
number.

Choose one of the following options:

CURRENT - to set the existing modal attribute value in
          effect. All entities created from this point on 
          take on the new attributes for pen number 
          assigned.

CHANGE  - to define new pen number attribute values only 
          to selected existing entities. This does not 
          alter the current values assigned to the 
          attribute in the Status Window.
