1. First open cajviewer, and you can see the icon of the directory on the right.

2. Click this icon, and the article table of contents will appear.

3. But this directory will be automatically retrieved. If you want to repair the directory, click the icon in the upper right corner of the directory.

4. The directory will always be displayed on the left, and it will automatically shrink back if you click it again.

5. If the directory is not found on the left.

6. Click View-Directory to display the directory.