Adding e-mails for campaign mailing

Hi Experts!

I really need to add addition e-mails (not standard-emails) for BPs and their CPs in marketing campaign mailing via ABAP. So I found out that it can be done in CRM_MKTTGGRP_EXPORT_BATCH -> CRM_MKTTG_SYNCHRON_EXEC -> CRM_MKTTGGRP_SEND_TO_CHANNEL -> gc_email_fax_mail_sms_func ( = CRM_IM_EMAIL_CREATE_SEND_51) -> CRM_IM_EMAIL_MAP_READ_BP_DATA or CRM_IM_EMAIL_GET_SMARTF_DATA. But I can't understand exactly how?? I tried to change lt_adstmp-table content but it did nothing 😔

Regards!

Dmitry