I'm a fresher in OpenERP and python, and I'd like to get some assistance for the following issue. Please help..

I have 3 XML document, it's chart_A for Electronic Manufacturing, chart_B for Retail Trading, and chart_C for Courier Services. All of those XML document used for Chart of Account's tree-view in Accounting. Balance Sheet for those 3 documents have a same record, the difference is just in its id, id for chart_A ="A11000000", "B11000000" for chart_B, and "C11000000" for chart_C. If the balance sheet loaded from other new XML document, all of chart document will reduced into a few page and reduce the use of database.

How to simplify those documents with python code? I'll really appreciate and thanking you guys to help me up on this problem.

Best Regards,

Windyta