RT-Theme 15 comes with a powerful product slier shortcode that lets you add selected product on your home page or inner pages. You also use this shortcode to display your products in 2,3,4 and 5 columns by disabling its slider feature. Check these usage samples;

Product Shortcode | Slider ON | 4 Columns

 

[product_slider slider="true" categories="product-category-2,sub-product-category-2" columns="4"]

 

Product Shortcode | Slider OFF | 2 Columns

 

[product_slider slider="false" categories="sub-product-category-2" columns="2"]

 

Product Shortcode | Slider ON | 3 Columns

Product Slider shortcode supports 2,3,4,5 column layouts

 

[product_slider slider="true" categories="sub-product-category-2" columns="3"]