Architecting and designing
  
Pen Style
Use this command to determine the style of line to use for drawing lines and rectangular symbols. The pen styles that are available include solid lines of differing thickness, a double-line option, and dotted lines. The Pen command also determines the color of the line.
If you selected one or more symbols of the same type before you invoked this command, their pen styles change to match the new option.
To change the default pen style for all future drawings of a selected symbol, set the pen style in the Symbol Style dialog box.