Shows or hides the Navigator, with which you can quickly jump to different parts of your document. You can also use the Navigator to insert elements from the current document or other open documents, and to organise master documents.
显示或隐藏“导航”，通过“导航”可以快速跳转到文档的不同部分。可以使用“导航”从当前文档或其它打开的文档中插入元素，还可以管理主控文档。