When using presets to control mixes and layer assignment, you will need to go through each layer and assign which mix it is routed to (on off or no change).

when you snapshot a mix you are capturing the positional and on and off info on a display, sadly it does not do what you hope. When you snapshot layers you are capturing the values within the layer and not the routing. it is fustrating when you are in a show that is being driven by presets as you get caught in a lengthy process.
I believe that the whole presets setup is a pain at times but equally having all the routing and mix data being able to be held on a internal cue is invaluable. I use presets alot when I am driving a catalyst via a lighting desk, and once they are setup make life very easy. and the mix snapshot is useful when you are a changing scaling or position on mixes without over writing layer info.


and what is TTT?

hope that was what you where looking for.
cheers
Phil