最后，右边的框可以用来选择元素，并指示图表上的元素是否已经被选中了。

Lastly, the box on the right is used both to select elements and to indicate whether elements on the diagram have been selected.

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操作下拉列表框中还有一些选项可用于处理数据或完善图表。

There are also options in the action drop-down box to work with the data or to refine the charts.

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图表上弹出属性对话框。

A pop-up properties dialog box on the diagram.

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