| txFieldStandard (0) | | Resets a field of a special type to a standard marked text field. |
| txFieldExternalLink (1) | | Defines the source of a hypertext link to a location outside of the document. The FieldTypeData property must be used to define where the link points to. |
| txFieldInternalLink (2) | | Defines the source of a hypertext link to a location in the same document.The FieldTypeData property must be used to define where the link points to. It must be the name of a marked text field that has the txFieldLinkTarget type. |
| txFieldPageNumber (3) | | This field displays the current page number. It can only be used in headers or footers. The FieldTypeData property can be used to define the starting number and its format. |
| txFieldLinkTarget (4) | | Defines a position in a document which is the target of a hypertext link. The FieldTypeData property must be used to define the name of this field. |
| txFieldHighlight (5) | | Defines a piece of text that can be highlighted. The FieldTypeData property must be used to define the color of the highlight. |
| txFieldTopic (6) | | Defines a position in a document that is the beginning of a topic. The FieldTypeData property must be used to define the number of the topic. |
| txFieldMSWord (7) | | Defines a Microsoft Word field. The FieldTypeData property must be used to define the field's type name and parameters. |
| txFieldHighEdit (8) | | Defines a Heiler HighEdit field. The FieldTypeData property must be used to define the field's type name and parameters. |
