For some document types there is a natural name that fits better than the generic term 'Parent'. It is none-the-less beneficial to stay with the generic term. This way you may define queries having instances of different doctypes in the result set and display their parents in the parent column.

If the alternative name is so much more meaningful than the generic term 'Parent' you may hide the parent line in the document properties table and add an additional line that refers to the Parent property (or the other way round). Please make sure that the referencing property is in a later line than the referenced property. Use the Display Document Property Macro for referencing.

Types call this property typically Superordinate Type.