Slider like in the demo page

I thank you so much for this awesome plugin,
I succeed in implemet logo slider in my website: https://www.adhityafernando.com. As you can see in the bottom.

But the slider only show one image per row, not like in the demo which have 3 image in the row. I have 5 images and set 3 image per slide, and also use this css code:
.logo-img { box-shadow: none !important; }
#logo-slider-wraper { margin-left: 70px; }
#logo-slider-wraper { text-align:center;}

Please tell me how to make it like in the demo.

https://www.ads-software.com/plugins/logo-slider/