Accessing observation point data within Gocad

@inproceedings{ApelRM2004,
 abstract = { In a Gocad model, Atoms store the geometrical, numerical property, and constraint information. Commonly, input data points are defined in a geomodel as control nodes and can act as constraints for geometrical and property interpolation. However, usually for geological observation points in the field more than geometrical and other numerical property data is collected. Examples are textual outcrop descriptions, pictures, and meta data. How can we make comprehensive observation point data accessible from within Gocad? },
 author = { Apel, Marcus },
 booktitle = { 24th gOcad Meeting },
 month = { "june" },
 publisher = { ASGA },
 title = { Accessing observation point data within Gocad },
 year = { 2004 }
}