PA_Client_Extn_Inv_Actions to pass the invoice comment before creating draft invoice

Hello,

We want to Automate the Project Billing event to AR Invoice Generation. in order to do, I understand we have PA_Client_Extn_Inv_Actions package to auto approve and release invoice.

Is there a way to pass invoice comment? I know we can pass release_flag = Y and approve_flag = Y and AR Invoice number

attached the screen shot of what i am looking for.

appreciate your early help.

Thanks

VIkas