change the single listing display

Need help please!!! In coupon theme, how can I change the display page (single listing page) for the listing by adding a grid that contains all their images. also, how can I disable this functions: Click to copy, reveal & print.
need only thumbnail image and when clicked show more images in grid style. (and for it to publish in that way)
How can I add a custom field in submission form that uploads a cover image or store logo and then the uploads for the other images. (any plugin???) code??? Thank you