var swiper = new Swiper('.swiper-container', {
  slidesPerView: 5,
  slidesPerColumn: 3,
  spaceBetween: 30
});

Slide 1     Slide 4    Slide 7    Slide 10    Slide 13
Slide 2     Slide 5    Slide 8    Slide 11    Slide 14
Slide 3     Slide 6    Slide 9    Slide 12    Slide 15

Slide 1     Slide 4    Slide 7    Slide 10    Slide 13
Slide 2     Slide 5    Slide 8    Slide 11    Slide 3
Slide 6     Slide 9    Slide 12

Slide 1     Slide 4    Slide 7    Slide 10    Slide 13
Slide 2     Slide 5    Slide 8    Slide 11
Slide 3     Slide 6    Slide 9    Slide 12