Cloning a standard transaction FPO4

Hi All,

I have a requirement where, i have to clone the standard transaction FPO4 ( alphabet O) . I will pass a key date, company code and G/L Account number in the selection screen and in the output report , I would get amounts for the respective document numbers (OPBEL) ,which i have to sum up as per Company code.

Here problem is as this is a standard tcode how can i make a 'Z' report based on the above that can meet the requirement.

I have tried this with SUBMIT , but this didn't work out .

Please suggest me if there are any better ways.

Thanks,

Vijay