The Notre Dame de Metz sample set provided by Milan Digital Audio is one of the landmark French romantic sample sets. It is available as standard and extended sample set. The organ was built by Charles Mutin and finished in 1903. Charles Mutin was trained in the Cavaillé-Coll firm. Therefore the sound is a true Aristide Cavaillé-Coll organ sound. The original MDA sample set does not provide portrait jambs. As the sample set is encrypted, it is unfortunately not possible to tweak the original ODF.
Stephen Schaub was so kind to provide me his Metz project CODM, where I implemented dual portrait jambs. However, I never published this extension, as it turned out to be impossible to create an ODF, which sounds as good as the encrypted sample set provided by MDA. Hopefully, in the future, it will be possible to tweak encrypted sample sets, if the sample set producer gives his permission.
How the sample set may look like is shown below. I used graphical elements from the original MDA sample set to build portrait jambs for the extended sample set.