AES Filing through GTM!!!

Client wants AES Filing to be done for all exports from USA. AFAIK first we need to consolidate our trade transactions into a customs shipment and then perform the filing.

Can anybody please help by letting me know what all fields do we need to map?

e.g, remark text, country code (of involved parties), province code, transportation mode, hazardous material indicator etc.

Thanks in Advance!!