How can I add two background images with Elementor? – WordPress

My Problem

I’m trying to set two background images to my wordpress page I create with Elementor. I can do that easily if I set two background images to the body. But my client wants to edit one of these background images themselves in Elementor. The problem is that Elementor only lets me add one background image (Elementor adds it to the body).

How can I set one background image via Elementor and one via css for the whole page?

I was thinking that I need another div just inside the start and the end of the body tag. But how can I add that in elementor?

This is how I do it right now with custom css. It works, but then the background image is not changeable with Elementor.

body {
 background-image: url(image2.svg),
      url(image1.jpg);
}