My 4 sessions of the Andromeda Galaxy M31 with M32, M110 and NGC206 are all stacked using APP - AstroPixelProcessor. A total of 254 pictures are used resulting in a time exposure of 3h32m.
Final editing using CS4.
Setting : Nikon D7500 with TLAPO80/480 f/6. Nikon Raw (Nef) was used by APP to stack the pictures.