Add Additional fields to the table control of MD16

Hi

I want to add additional fields to the table control of MD16 (screen 410 of Program SAPMM61P).

I tried user-exits from the below enhancements but its not stopping there.

LMDR2001 User exits restr. profiles of opt. pur.ord.-based load

LMDZU001 User exits in additional planning

Please advise which exit to accomplish the above requirement.

Thanks

MM