To add a view, a spot, a movable object or any other feature listed in the table of contents to the left, open your model in a 3D editor of your choice (it must support 3D object hierarchy and FBX export), then add the "Model" root element and move all 3D objects representing your model there. Then follow documentation to add specific features.
Vyzn is a HoloLens app, plus some WEB interfaces and cloud infrastructure. We don't provide a 3D editor to author presentations. Instead, you should use any 3D editor that supports 3D object hierarchy and FBX export. You can use 3ds Max, Maya, Cinema 4D, Modo, Blender (which is free) or any other editor of your choice.
SketchUp doesn't support 3D object hierarchy, so if you want to create a presentation with Vyzn features based on a SketchUp model, then you should export the model and work with it in a different 3D editor. Please check our video tutorial on how to do that.