<soapbox>
It is unlikely that this issue alone would justify use of a third party product, but if you want to overcome the various problems with ND6 rich text manipulation (e.g., nested tables, insertion in sections, find & replace), and add significant additional functionality (e.g., sorting tables, automatic cross-index links, dynamic layers), our
Midas Rich Text LSX has been around and widely used for several major generations of Notes/Domino, and still supports R4.5x through ND6.5x. This particular functionality (inserting inside a section) has been available and working since Midas Version 1.0 was released in July 1997. How many more years/versions are you willing to wait?
</soapbox>