copy one cell value to cells in same column with m

How can i achive that user can copy values of one cell to other cells in verical direction. Like in Excel where you can click on cell and then drag it down to copy its value to other cells in same column?

If you set grid.Navigation.AllowSmartClipboard = true , copy one cell and then select multiple cells vertically and paste, it will paste this cell in all selected cells.