INSTANCE lets you choose a drawing instance that you want
to change from instance-specific to layout-specific 
geometry.

Once you modelize a drawing instance, you cannot change it
back, so you should first use COPY to make a backup of the
layout in case you make a mistake.

Cursor select the instance that you want to change. CADKEY
asks whether it's okay to modelize; choose YES or NO.

If you choose YES, CADKEY modelizes the instance. Nothing
appears to change, but CADKEY deletes the instance-
specific geometry and replaces it with layout-specific
geometry.

If you choose NO, CADKEY prompts you to select another
instance that you want to change.

If you want to make sure that CADKEY modelized the
instance, choose DETAIL, LAYOUT, SET, SHOWINST. If CADKEY
does not highlight the instance, it consists of layout-
specific geometry. That is, CADKEY modelized the instance
correctly. 
