After searching through the available documentation, it does not appear that there are any Global Parameters for S/E Settings, specifically the "Markers" setting (Section or Elevation, see attached). Is this true? If so, is there any way to reference this setting in the GDL script?
MacBook Pro Apple M2 Max, 96 GB of RAM AC27 US (5003) on Mac OS Ventura 13.6.2 Started on AC4.0 in 91/92/93; full-time user since AC8.1 in 2004
All parameter names you find here are checked by the resource files of ArchiCAD 10. There might only be optional parameters, which are allowed, but not created, if you change object subtype to section marker. All others are listed there. No chance to find one more, I think.