Add-ons
The Add-ons block lists extra products a customer can tick. They are added to the cart together with the main product, each at its own price.

Add add-ons
- In Product details, click Add-ons (or Add block > Add-ons).
- Choose the Products to offer (1). Each add-on uses its first available variant.
- Pick a Layout (2): list, tiles, chips or carousel.
- Turn on Show spec summary to show each add-on's
custom.spec_line.

Settings reference
Add-ons
| Heading | |
|---|---|
| Layout | Options: List, Tiles, Chips, Carousel. |
| Progress line | Options: Desktop and mobile, Desktop only, Mobile only, Off. |
| Tiles per row | Slider. |
| Products | Each add-on uses its first available variant. |
| Show spec summary | Uses the product's custom.spec_line metafield. |
How it works
- Ticked add-ons are added in the same cart request as the main product.
- A sold out add-on stays listed as Sold out and cannot be ticked.