How to attach 2 different images to WordPress posts and pages for different needs?

Question

PHP

WordPress has the ability to attach post thumbnails to posts and pages, and now on one site these "thumbnails" are used for the slider on the main page, now it was necessary to make it possible to add a second page of a completely different size, which would be displayed directly on the page / post, anyone faced with this already?

Answer 1

Faced. Used Advanced Custom Fields, Image field