DocuScan Plus for Mac operates using a few simple concepts that you'll want to be aware of in order to get the most from the application. You will be able to move through the application using your Voiceover cursor, and you'll need to understand how to interact with content, activate buttons and popups, and be familiar with browsing for files using the standard browse dialogue box on the Mac. Beyond these Mac-specific concepts, there is one additional concept to be aware of.
DocuScan Plus utilizes a set of Windows within the application itself. The main application window contains buttons labeled "New Document", "Manage Documents", "Preferences", and "Help". Once you activate any of these options, a separate window appears, but the main interface remains available as well. To cycle between open windows in the application, press command+grave accent or command+shift+grave accent. Unlike many Windows applications, which use alt+tab to cycle between not only active programs but in some cases, different windows in the same program, the Mac always treats multiple windows in one application differently from running applications. Thus, command+tab will cycle between Docuscan Plus and other applications,, but command+grave accent cycles between open windows within Docuscan Plus. This is an important distinction to bear in mind as you use any Mac application.
To close the currently focused window within the application, press command+w. To exit the application completely, use command+q.