 attachments views 2 lets you combine a number of displays together in one view including potentially more than one page display each page display can be a regular page display with its own url or an attachment to another display attachments are basically one or more views that all appear at the same url of the page they are attached to one after the other so the calendar now creates one display that creates the back next navigation and attaches to it a year month week or day display with the calendar for the right period  