Removes the specified column at from the receiver.
The column's cells are autoreleased. This method redraws the receiver. Your code should normally send
sizeToCells after invoking this method to resize the receiver so it fits the reduced cell count.
Laying Out the Cells of the Matrix
Adds a new column of cells to the right of the last column.
Adds a new row of cells below the last row.
The size of each cell in the matrix.
Inserts a new row of cells before the specified row.
The vertical and horizontal spacing between cells in the matrix.
Sorts the receiver’s cells in ascending order as defined by the comparison method.