One Document for Display Property Macros

In the past the Display Property Macros allowed to provide more than one document. But the rendering did not support to do anything with these values.

To make the UI more intuitive, now the macros restrict the number of documents to one (or zero which implies to reference the current document, where applicable).

Name defaults

The Display Document Properties will allow more parameters that refer to property names to default to the Name property. Therefore these parameters are no longer required to provide a value.