Default the values on click on 'NEW ENTRIES' IN the Table maintenance generator( TMG )

Hi ,

I have table and created tmg and maintenance view also.

table have filed1 , filed2 and

my query is when I press 'NEW ENTRY ; in the TMG( sm30) filed1 values should be fill with some initial value.

ex

filed1

after click on 'NEW ENTRY

filed1 filed2

SAP

i tried with event create new entry(05) but it is not fulfilling my requirement.

Please suggest me.

Thank you.

Regards,

Shivaji.