iCalamus basically offers unlimited views of documents.
At the moment, four different views are available:
Cover page view
Combined cover/layout page view
Just click the tiny menu button in the upper left corner of the document window. Then a menu pops up, where you can choose the desired view.
The info line below the toolbar in the document window informs you about the currently chosen view. If you have added further views of a document in one document window, the info line also shows which of the views is currently active. This means that you have decided to work in that specific view at the moment, by clicking with the mouse in the work area of that document view. (You can activate another view in a document window at any time and continue working in that other view.)
The differences between layout pages and master pages are described below.