Thank you Paul for answering so quickly and because I have got the opportunity...I want to congratulate to you because I admire your work, I view your movie "My dog Tulip" and I really liked it, and thinking that you could do that great work with a few collaborators is impressive and inspiring.
Back to the audio problem

..what I mean is that:

- Here, under the Z you have got a vertical bar that allows you to scroll up and down
,

- Here instead you don't have a vertical bar that allows you to scroll down
So everytime I have to enlarge the project window to view all the audio layers, and maybe if I add too many sounds i will not see every audio layer because there is not enough space in the computer screen..
Maybe I don't understand your first answer but I tried to decrease the project area size and I didn't find a solution...
Simone