The Edit item block adds an action button to each cart line item. When a customer clicks it, a pop-up opens letting them change the variant they've already added — no need to remove the item and re-add it.
🛠️ How to Set It Up
Go to Cart Blocks and click into the Items block.
Scroll down to the Product information blocks section — this is the area between the variant selector and the quantity selector.
Click Add Block.
Select Edit item.
Click into the block to customize it:
Edit the button text
Toggle whether the icon is shown
Change the icon color
Want the button to only show up on specific items instead of every line item? That's done through item targeting, since Edit item is a sub-block — covered in a separate article.