# Clone fields
Clone fields allow you to mirror fields from other field groups. Similar to Conditional Fields, you can simply refer to other registered fields by using the key field.
fields:
- page-banner.acf.yaml
pages:
- page-default.acf.yaml
When cloning specific fields within other field groups, use fully expanded field keys:
fields:
- page-banner.acf.yaml
pages:
- page-default.acf.yaml
If you are not comfortable using fully expanded keys to clone fields, you might be interested to check out Blueprints.