The Tree View window shows an XML document as a hierarchy of folders. Each folder represents a tag in the document, and the sentences are nested at the deepest level of the folder hierarchy.
When you first open a document, it appears in the Tree View window as a single, closed folder:

You can open the Tree manually by single-clicking the handle to the left of a folder, or by double-clicking a folder itself. There are a number of automatic ways to navigate the Tree. See further instructions for Navigating.

When you select a sentence in the Tree View window, it automatically appears in the Text Editor window and is immediately checked for KCE compliance.

Sentences in the Tree View window appear with color coding that indicates their status:


