I used to have CellEditing attached to a button with the following code:

function editRow() {
// Find the WebDataGrid control and load it into a jQuery object.
var grid = $find("dgvStaff");
// Find the active row
var activeRow = grid.get_behaviors().get_activation().get_activeCell().get_row();
// Open the first non-hidden cell in the active row for editing
grid.get_behaviors().get_editingCore().get_behaviors().get_cellEditing().enterEditMode(activeRow.get_cell(2));
}

Is it possible to change this or add a new function that will allow a button to open up the RowEditing?