mission impossible part4

in 3 mission impossible films it was tom now in mi4 i am there.

according to a very reputed sap implementation company. it is next to impossible to see purchasing document no against vendor account when we press the simulate tab in t.code MIro.

if it is correct can anyone tell the exact reason of immposibility.

can any one solve the mystry that how can we make it possible through configuration to see po no in purchasing column against vendor gl account

best of luck to sap consultants