Need to customize standard sales order report to add FOB/Incoterms field

Summary

Need to customize the standard sales order report to add FOB/Incoterms field.

Content

Hi Team,

We need to customize the standard sales order report to add FOB/Incoterms field. The sample xml linked in standard sales order report doesn't have this field. Can anyone please help me on how i can get the run time XML for sales order report. 

Thanks in Advance.

Thanks,
Supraja.