How can I change the report layout of FUMSV00(SAP Standard Report)

Hi,

How can I change the report layout of FUMSV00(SAP Standard Report) ?

I use this transaction for VAT report and I would like to add another column, which is the assignment of the document. My client requarment is to add a new column to this report? The column of assigment of the GL documents? can any have idea about this issue , please give me solution.

Thanks in advance.

Regards,

Sourav