Yes. NAMA provides a unique system to easily reach to any previous copy for any document. For example, if a sales invoice was modified twenty times via different users, you can reach to any previous copy for this sales invoice and recognize all modifications occurred on this copy that distinguish it from its previous and next copies. In this example, if you have authority, you can reach to the sales invoice copy number 18 and recognize its changes that distinguish it from its previous and next copies. NAMA supports this feature in all NAMA documents with any number of copies.