table maintainance generator

hii all,

I have created a table maintainance for a ztable and created atr.code for it. when i run the transaction code , by giving the default values in the tr.code view name as my z-table name and update_ltd as 'X' , I am getting all the fields that are there in table for field selection, so that i can give input values for these selected fileds in filed selection screen.But my requirement is that i want only one of the field of the table to be directly to be in the screen 'determine work area entry' screen ,without the screen 'Field Selection' . this similar kind of implemantation was done in Tr.Code 'PK05'. help me in solving this.

with regards,

sandeep akella,