Some chart elements may not show in the chart, you can add them if they are missing. To add chart elements, please see the steps below:
Step 1. Click anywhere in the chart, or to check here see how to make a chart;
Step 2. On the right of the chart, click Chart Element button;
Step 3. Select the element from the list;
Step 4. Format the element: move the mouse to the element and click the triangle, then select the option from the list.