In addition to the 3D and 2D script windows that define the appearance of the GDL Object, further scripts are available for adding complementary information to it.
These are the Properties Script used for quantity calculations, the Parameter Script that includes the list of possible values for different parameters, and the User Interface Script for creating a custom interface for parameter entry, Forward Migration Script and Backward Migration Scripts to define how to migrate an old instance forward to the actual element or how to migrate the element backward to an older one.
The commands available for all these script types are detailed on the following pages.