@Alin
1) No, theme does not provide this option, you would need to develop it
2) You can find in global.js following code:
$('.item-bxslider').bxSlider({
minSlides: 2,
maxSlides: 2,
If you change min and max slides to 1, only 1 image should be shown. You may need to modify related styles to fit design and match image to full width.