# Support for option fields

> Discover the latest enhancements to Webflow's APIs

* **[Create Option fields](/data/reference/cms/collection-fields/create)**<br />
  Option fields let you define a predefined list of choices for a collection item. You can add these fields either when creating a new collection via the [create collection](/data/reference/cms/collections/create) endpoint or add them to existing collections using the [create collection field](/data/reference/cms/collection-fields/create) endpoint.