Questions on Datacube reporting

1. Is it possible to rename the zip folder that is sent to the FTP server. Our Prod and QA uses the same FTP server and we want them to have different names so that the analytics can map it correctly.
2. We have an attribute with ~10000 chars included in the mapping.xml file. But since it is not defined as a clob, the value is truncated to 4000 chars. How can we change the default number of chars?
3. We tried changing the attribute with ~10000 chars to CLOB type. It created a new file with all the data from that particular attribute but there is no way for us to map this data to particular transaction and transaction line. Is it possible to include transaction id and transaction line id in this file? If not, how can we identify the association.