Message / Outgoing / Edit
If you have an outgoing message currently selected, either normally or in the newsgroup or user window, you can edit its text with this menu item, and ONLY this menu item. Remember to save it completely after re-editing and confirm in the send window with that it should be sent (assuming that is what you want). <Esc> aborts, AND DOES NOT SEND THE MESSAGE.
menu = Unsent / Edit
help = Outgoing / Edit