Hi Jai Prabhu,
You can do this by transaction code SHD0,
Enter the Transaction code in the field like MM02/MM03
Hit on create button, and it will take you to MM02/MM03, and then select the organisational views like Foreign Trade Import view and you can make it invisible/required/hidden for particular field like ALNUM/ECCN-MAEX.
Regards,
Manjunath B L