If I send the Yamaha P120s midi out to the Ozone midi in, then send the Ozone midi out to the computer's soft sampler, it won't work like a chain? I can't believe they make 88 key digital pianos and then say they are midi controllers when they only have keys and no other controls. Is there no way to only have to buy only one more piece of hardware so that my 88keys can control a soft sampler with mod wheel, pitch bend, etc.? I have to get a merge box too?