wow! that's quite a strange layout (but of course that's my personal point of view here) - I am not sure, if something similar can be implemented - but I have already something in mind, that is going into that direction.
One of the problems will remain: The API does not allow you access to the part of the device storage where messages and applications are stored - so that part will be not visible for you... but there is nothing that I could do from my side to get around that restriction.
So stay tuned for the next release of FileScout (but there is still a long way to...)
Matthias