enter your table name.
Then goto Utilities\TableMaintenance Generator double click on the textbox of Overview screen.
Just wait and the layout editor will be open.
make any changes in the column names or width.
Go to SE55 click on change button or in SE11-> utilities->maintenance.Â Click on "Expert mode".Â Leave the first two check box that is Include renew. Tick rest check box and press enter. It will regenerate you maintenance screen.