Copy a cell's value into multiple other cells, using the "fill handle" UI element. Configure the direction of copying, and more, through Handsontable's API.
Using the tiny square known as the 'fill handle' in the corner of the selected cell, you can drag it (drag-down) to repeat the values from the cell. Double click the fill handle in
cell B4 where the value is
30 to fill the selection down to the last value in neighboring column, just like it would in Excel or Google Sheets.
In this configuration, the fill handle is restricted to move only vertically. New rows are automatically added to the bottom of the table by changing