For slider image, just add “banner_image” as meta name and uploaded image path as key in custom fields while writing or editing any post.
for Featured image, just add “featured_image” as meta name and uploaded image path as key in custom fields while writing or editing any post.
for tabs image, just add “tabs_image” as meta name and uploaded image path as key in custom fields while writing or editing any post.
for Make any post Featured, just add “is_featured” as meta name and  “1″ as key in custom fields while writing or editing any post.