View frames persist in an AutoCAD drawing as objects with the name AeccViewFrame.
View frame objects are created automatically when you use the Create View Frames wizard. View frames are always associated with a parent view frame group object.
View frames are created based on an alignment in the drawing, and on a designated plan view or profile view viewport in a template. When you choose to create sheets that will contain profile view data in addition to plan view data, you must also have a profile in the drawing. The properties of the view frame are saved in the drawing in which you create the view frame.
Most of the view frame object information is derived from the viewport information specified in the template. For example, the view frames you create get their size and scale from the viewport in the template. Similarly, the sheet layout is also derived from the referenced template.
An important concept to understand is that the viewports in the referenced template must have a property called Viewport Type set to either plan or profile, depending on the type of data you want that viewport to display. For more information, see Setting Up Drawing Templates for Plan Production.