Is it possible to insert a Hue/Saturation adjustment layer at the top of all layers – but make it so that chosen layers are not affected by it?
Can it be done without altering positions? (Ie. moving this layer down, and moving up the ones that I want to keep unchanged.)
Make groups on which layer set you want to apply hue and saturation,this will affect only group items.I attached a SS to make it clear please let me know if you have any confusion.
according to your above comment i would suggest you to check the concept of layer comps it might help you.