What is the function of add-ons in Google Docs?

Add-ons in Google Docs are designed to enhance functionality and features, allowing users to tailor their document editing and creation experience beyond the built-in tools. They serve as additional applications that integrate seamlessly with Google Docs, offering various utilities, such as advanced formatting options, data analysis tools, or integrations with external services for collaboration or research.

By enhancing the capabilities of Google Docs, add-ons can provide functionalities that enable users to automate tasks, improve workflow efficiency, or add special features that aren’t available by default. This broadens the scope of what users can achieve within their documents, making add-ons a powerful resource for enhancing productivity and creativity.

The other options do not accurately represent the primary role of add-ons. While templates may be included as a feature in some add-ons, the primary function of add-ons is not simply to add templates. Changing the interface layout is outside the scope of what add-ons can do since they don't alter the overall design of the Google Docs interface but rather augment its features. Likewise, restricting editing capabilities is generally a function of permissions settings within Google Docs, rather than something achieved through add-ons, which focus on enhancing user experience and functionality.