Concordance Viewer is synchronized with Concordance. Each separately opened database has a tab at the top of Concordance Viewer that displays the database name. The name of the currently viewed database will be underlined. You can have up to 16 databases open in Concordance Viewer at the same time.
Documents may consists of multiple pages. You can always determine what page you are currently viewing by looking at the page information in the lower right corner (on the Status Bar).
Use the Viewer Toolbar at the top to move between documents, and move to different pages within a document. You can also navigate pages by selecting a page in the Thumbnails Pane.
You can close a specific database in Concordance Viewer by clicking the X in the upper right corner of that database tab at the top.