Problem in SM30 ?

HEllo,

I have created the TMG and when i am going to SM30 Txcode and giving my table name clicking Maintain it is displaying the table where are going to enter the data in the table. But the problem is when i am clicking on NEW ENTRIES it is taking me another screen where it is showing + symbols and that to i can enter only one record at a time. Please help me to resolve this issue.

Thks