One Product
#1. Hover on the product that you want to rename, click on the (…) icon and choose Edit
#2. On the left of the screen, you choose Checkout and then choose Custom Button
#3. Next, you enable Custom Label and set a new name at Label
Result:
All Products
You add this code to the Custom CSS box
/* rename add to cart - all products */ .sqs-add-to-cart-button-inner { font-size: 0; } .sqs-add-to-cart-button-inner:before { content: "new text"; font-size: 20px; }
Result: