Creating Dia Stencils

[SOTL <sotl155360 bellsouth net>]

Hi All

I know this is very simple but I have not found a tutorial of explanation of 
How-To do what I need.

I have spent the better part of 4 hours goggling for procedures to create 
stencils and looked at the on line tutorials and procedures I could find with 
no results.

Lets assume I make a drawing say a giant "X" with a line through it. A very 
simple drawing. Now I would like to place this in a new Stencil file called 
"Stars" which is similar to the "Electrical" stencil file. 

Would some kind person either explain how this is done or point me to a How-To 
that contains such an explanation.

Thanks

SOTL