How to add variation control using the "Add to cart" button in the template? by Tips and Tricks HQ Support Portal › Forums › Simple PayPal Shopping Cart › Simple shopping Cart Usage › How to add variation control using the "Add to cart" button in the template? Tagged: add to cart, variation, variation control This topic has 10 replies, 6 voices, and was last updated 13 years, 1 month ago by amin007. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In