umenu et wave~
if you name max patch same as external or other relevant object,
it will break the object.

allways read help file of objects that you try to use.
Otherwise learning max will be difficult.

Hi,
Thanks. That's perfect.
I'll follow your advice. It all seems so complicated. I'll persevere.
Kind regards.
Nat
Be quiet, i believe everyone made that at the begin with Max :-) After that, care of you, Max becomes addictive
mz