Like all the View commands, you can use the Pack command from Autoview (F7). In Autoview the first page of the contents of a file, other than a graphics file, is displayed as you scroll down a list of files. Instead of using J to enter Pack view you must use shift-J; similarly all other View commands must be entered shifted, or you can enter full-screen View mode by hitting V.
Graphics files are not displayed as graphics by Autoview; instead, the graphics type, number of colours and size in pixels is displayed. But hitting V will display the file as a graphic.
Tom Ruben