How can i put in the editbox any text with the " symbol ?
//set %Channels $?="Type multiple channel separe with $+($chr(34),$chr(44),$chr(34)) symbol"

Must show: Type multiple channel separe with "," symbol
But show only: Type multiple channel separe with

Any ideas ?

try using \", i didn't try, but it normally works in programming. (adding a \ in front)

$replace($?="Type in multiple channels",$chr(32),$chr(44))

maybe?

As far as I know you can't. $input() is a more flexible implementation of the $? dialogs, use that instead.
eg. $input(Type multiple channel separe with $+($chr(34),$chr(44),$chr(34)) symbol, e)
Note the second parameter 'e'.

He he Work fine
10x

You could use a '

In most cases it will look the same.. '' = '; " = ";