Hello, sorry for my poor english.
I'll try to explain clearly what I would like to do.

in the standard versio of simple view you can have
small pics on the left and big picture on the right.

I'd like to have
small pictures on the left
and one clic on one of this thumb will give me on the right :
about 4 or 6 small thumb on the top with the big picture at the bottom

1     2    3    4                         1a  1b  1c  1d
5     6    7    8
9   10  11  12                         Big Picture of 1a if 1 is selected at the left...
13 14  15  16

something like
main galery on left
and on the right galery and big picture

I'd like to know if I can do that in the Pro Version ?

another question : is it possible that the background is transparent ?
and how to do that ?