In order to select something from a closed model, you had to cancel out of these Select Element dialogs, manually open the model, and then reinvoke the dialog to select the element.
为例从一个封闭模型中选择一些选项，您需要抵消这些 Select Element 对话框，手工开打这个模型，然后利用这个对话框来选择这个元素。