Send 1 of many attacments files in PO output message

Hi guys,

Lets say got a PO with 2 attachment files one,

I need to send just one of those 2 in a mail (it will be chosen by the attachment title).

Now the output message its sending both files, how can I pick the files in runtime?

Its there any badi or exit I can use?

Thanks!

Nico.-