PO Print Preview in ME21n

Hello,

i cannot do print preview during create PO (me21n)... the ouput message is only create

after the PO is save... then i can display only in me22n or me23n..

is there anyway i can activate the printpreview during PO creation. we are using

customize program for the program and for the sapscript form.

output message is set up in mn04/mn05 as well..

thanks in advance