How do I add a series line in a Excel2013 column chart?

How do I add a series line in a Excel2013 column chart?

1, we first look at our data, we select the data, click the "Insert" tab

2, find a column or bar chart, select a second, pay attention to its form

3, this is the column chart we inserted, then we want to add series line

4. Double-click the bar chart to open the Design tab and find the Add chart element

5, in the Drop-down menu, find "line"-Series line

6, to this line of our series added finished, you can also double-click the line to set its color, thickness, line style

How do you add a series line in the