Hi Marc,
There are some RFCs to change the preview filters sliders and I am planning to acccelate this using GPUs, so possible the looks and feel will soon change. Maybe it’s best to wait for the improvement before we make instructions on how to use this? I realise this need some explanation. For instance the black, white, gamma sliders can alwasy be used. And the DDP settings below gamma are applied on the Black, White, Gamma adjusted values.