# Field Options Field options are additional behaviors that can be configured on individual fields, regardless of their type. They extend what a field can do without changing its data type. * [**Pre-fill**](/user-documentation/build/building-forms/field-options/prefill.md) — automatically populate a field with a value from the current user, a parent submission, or a fixed default. * [**Advanced Search**](/user-documentation/build/building-forms/field-options/advanced-search.md) — configure how users search for and filter values in relation and list fields. * [**OCR**](/user-documentation/build/building-forms/field-options/ocr.md) — enable optical character recognition to extract text from photos taken in a picture field. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://www.center.daxium-air.com/user-documentation/build/building-forms/field-options.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.