In the icons above the message editor, the last icon is #. Clicking this icon will give you CODE html tags in your message.
If you don't see the # icon, go to your User Control Panel, and select Edit Options. Go all the way down to the bottom of the window, and in the Message Editor Interface, select Enhanced Interface - Full WYSIWYG Editing from the list. Save your changes.
Now to post a report, a batch file, or formulas , paste that text between the CODE tags, and you'll get this presentation style:
Monarch /rpt:"C:\Sample Report.prn" /mod:"C:\Sample Model.xmod"