I suggest that you take a look at Midas Rich Text add-on for Lotus Note Domino (made by geniisoft.com -- highly recommended). I am sure Midas would make it possible to accomplish your goal.
Do you have comments on this Ask the Expert Q&A? Let us know.
Related information from SearchDomino.com:
Dig Deeper on Web Development for Lotus Notes Domino
Related Q&A from Jens Bruntt
Web Development expert Jens Bruntt offers suggestions on how to programmatically copy and hide attachments in Lotus Notes rich-text fields. Continue Reading
Web Development expert Jens Bruntt outlines three potential issues to consider when troubleshooting Lotus Notes Domino tabbed table problems. Continue Reading
Learn two Lotus Notes Domino commands you can use to verify if users have access to Web pages from within Lotus Notes. Continue Reading