Complete the Look

Step Create Metaobjects

Login to your Shopify store, click to Settings
Click to Custom data --> Metaobjects and Click Add definition
Add metaobject definition with 1 fields as bellow:

- Name: Product

- Field 1:

* Name: Product

* Type: Product - List of value

Step Create Metafields

Back to Custom data -> Metafields -> Products
Add a metafield as bellow:

- Name: Complete the Look

- Type: Metaobject - List of entries

- Reference: Product

- Namespace and key: custom.complete_the_look
Setup metafield for a product and you can see the result.

Choosing the metafield (version 1.3.0)

The Complete the look section reads this content through its Complete the look metafield setting. The default key is custom.complete_the_look.

Keep the default key above and it works with no extra setup.
Or rename it: create the metafield under your own namespace.key (for example, your brand name), then set Complete the look metafield to match.
Reuse on one page: create one metafield per copy (for example custom.complete_the_look and custom.complete_the_look_2) and point each Complete the look metafield at its own key to show different content.

See How to setup Metafield in version 1.3.0? for details.