Screen Exit

Hi Experts,

In MM02 transaction(Program SAPLMGD1,screen -2001) , there is a field called old material number(MARA-BISMT) . I want to change the description from old. mtrl .number to

custom description.

Is there any way to change it .We dont have access key with us.

Could anybody help in this regard?

Thanks,

Ponraj.s.