To generate documentation you will select the solution you wish to generate for from the "Documentation" page.
From this page you will be able to generate documentation for this solution, as well as see documentation that has already been generated for this solution. When generating new documents you will be able to set the Document Title, as well as choose from CHM, HTML Frameset, RTF, and Word documentation. Once you set the options you want, click on the "Generate Document" button to begin generation.
Once you click the "Generate Document" button, the progress will be shown in the Pending Documents pane. Here you will be able to monitor it's status and progress. The status area will update continuously showing what current step it is on, and the progress bar will update accordingly. Once the document is finished it will then show up in the Generated Documents pane.