not 100% sure what you’re after but this may help … i did a site one time and one special set of “pages” on the site were sort of sectionalised ( eg each page consisted of a title and about 4 other “fields” ) …. the way i did it in the back end was to do like dzogchen suggested use custom fields … so i used the title from the wordpress system and then i set up 4 custom fields and then to make it look good for the user what i did was to go to the “screen options” at the top and turn off the visual editor ….. ### actually sorry scratch all that (i’ve left it in because it may actually work for you) #### … i think how i achieved this was that i used a custom post type and did all of what i just said in the programming because the template tags allow you to turn on and off what is seen in the editor …. yes it’s coming back to me now ( sorry but it’s a while back ) …. what you’d need to do that is a combination of custom post types and the settings api … this makes it very slick but warning the settings api is very good, very powerful but takes a bit of working out ( also tip if you are going this way there are two ways of doing settings in wp the new way and the old …. dont get mixed up )
