QUOTE(acc @ Nov 28 2008, 06:04 AM)

No problem: each stop, whether on the fonds chest or on the anches chest, has its own drawknob. So if you pull, say, Montre 8', Prestant 4', Trompette 8', and Clairon 4' on the Grand-Orgue, you will hear Montre and Prestant, and when you then engage the "Anches GO" spoon during play, only Trompette and Clairon will be added.
One example is Prière: at the beginning, Franck would have drawn all 8' flue stops and the Hautbois (which, despite being a reed, was actually on the fonds chest), plus the Trompette on Récit. During play, when the score says "Ajoutez la Trompette" (e.g. at the 3-against-2 part in C# Major), he would then simply have engaged the Récit anches spoon.
Goodness, acc, you must be another migrant from the Mander boards...

! (I've also learned a lot from these posts, as despite being a relative beginner, the question of how to register
anches has bothered me.)