Credit Invoice Approval - can we send invoice as attachment along with the Email approval notificati

Hi,

Iam testing the credit invoice approval where i would need the Invoice(especially proforma if possible) to be sent along with the approval notification email. I have attached a document provided by oracle. in that attached PDF in the transaction configuration page for credit invoice is set by default as "Inline HTML mail",however i would like to test the same invoice approval process for the delivery method "BOTH ATTACHMENT AND INLINE". I have tested this and iam receiving only the email notification and not the attachment. can the invoice be sent as attachment along with this approval notification if we set