scatter
        
        Test: (1) click zoom btn (2) select (3) click zoom btn, expect: not change
        
        Multiple Y axis (default)
        
        Specify Y axis (yAxisIndex: [1, 2, 4], xAxisIndex: false, should be 'lineY' brush)
        
        Specify Y axis (yAxisIndex: false, should be 'lineX' brush)