Ensure you have created all the Viewpoints that you want to include in your presentation before you start (see How to create a viewpoint).
Open the Viewpoints panel in the right-hand toolbar.
Hover over the viewpoint you would like to add to the Presentation. A checkbox will appear to the left. Select all of the Viewpoints you would like to add.
Once you are happy with your selection, open the three-dot menu in the footer and select "Create new presentation".
You can update the name of your presentation.
Please note: Viewpoints will automatically be listed in the same order as the viewpoints tab but they can be reordered within the Presentation.