I see no way to issue the CVS commands edit and unedit, however, I do see that there is the ability to monitor edits/unedits. Is there a way to issue the edit or unedit command? -- Bill Peet peet@merl.com Volume Graphics Group Direct : (617) 621-7529 Mitsubishi Electric ITA Main : (617) 621-7500 201 Broadway Fax : (617) 621-7597 Cambridge, MA 02139 http://3dvolumegraphics.com