CompuServe Messages

Hello.. I am in need of better palette control for my 3DS generated FLI's. I need to have some colors set aside that don't change in a series of animations I have.. For instance the first 16 colors in the palette are the default EGA color palette. Are there any utilities that can freeze a few colors and optimize the rest to use either the frozen colors or the optimized colors. Autodesk Animator will do this for a single frame, but I have yet to find something that will look at all the frames, and generate one palette, with some colors frozen. Thank you very much for your help.. Dave