How to Add Value table data to the drop down

Hi friends,

I have created a customer table, in which I will be having the fields like MAND VKORG,and AUART.

auart has a value table.but customer wants to see those values in SM30( TABLE MAINTAINCE GENERATOR) when creating the values in Drop down instead of in a F4. please help to achive the requirement.

I have gone to SE 51 and changed the AUART to list box. I am getting the drop down but I am not able to see the F4 values in drop down. Please help me incase I need to write the code,procedure by step wise

Thanks& regards,

Xavier