> For the complete documentation index, see [llms.txt](https://docs.tonic.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.tonic.ai/textual/dataset-configure-redaction/textual-datasets-synthesis-options/synthesis-custom-entity-type.md). # Setting the generator for custom entity types By default, when you select the **Synthesize** option for a custom entity type, Textual scrambles the original value. From the generator dropdown list, select the generator to use to create the replacement value.

Generator dropdown list for a custom entity type

The available generators are:

Generator	Description
Scramble	This is the default generator. Scrambles the original value.
CC Exp	Generates a credit card expiration date.
Company Name	Generates a name of a business.
Credit Card	Generates a credit card number.
CVV	Generates a credit card security code.
Date Time	Generates a datetime value. The Date Time generator has the same synthesis options as the built-in Date/Time entity type.
Email	Generates an email address.
HIPAA Address Generator	Generates a mailing address. The generator has the same synthesis options as the built-in location entity types.
IP Address	Generates an IP address.
MICR Code	Generates an MICR code.
Money	Generates a currency amount.
Name	Generates a person's name. You configure: Whether to generate the same replacement value from source values that have different capitalization. Whether the replacement value reflects the gender of the original value.
Numeric Value	Generates a numeric value. You configure whether to use the Integer Primary Key generator to generate the value.
Person Age	Generates an age value. The Person Age generator has the same synthesis options as the built-in Age entity type.
Phone Number	Generates a telephone number. The Phone Number generator has the same synthesis options as the built-in Phone Number entity type.
SSN	Generates a United States Social Security Number.
URL	Generates a URL.

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