Notification of a missing attachment from a specific word list

One of the many nice features of eM Client, when sending an email, is being notified that a required attachment is missing if the body of the email has the word “attachment” or a similar word (like “attached”, etc.).
However, it would be nice if specific words could be added to an editable user’s list that would trigger the “missing attachment” notification.
Two examples: (1) Words like “photos”, “document”, “contract”, etc.;
(2) The title of a newsletter that you send out monthly.

Thanks for considering this and a big thanks for eM Client.