In the station3d.shp, no altitude/depth are natively in the attribute table. Could is be possible to add it directly when exporting with Therion ?
In the shapefile points2d.shp :

in the point « continuation », all the attr are added to the attribute table, but the option -text is not. I suppose this is a bug, could it be add, please ?
In the point « altitude », the value is not in the attribute table. I could add it with a post-process script, by it would be great if this is already done directly by Therion during export ! Is that possible ?
In the point « Height », the value give in « -value » option is not written in the attribute table. Is it possible to add it during Therion export ?
For all the point, the points, the scale option value is also absent from the attribute table. Is it also possible to add it during Therion export ?

Also, to have a clean GIS working map, we need to post-process areas and lines to cut most of them with the outline, just to render what is inside the outline. I do not know if this is possible or not to do it natively inside Therion, if yes, it could be great. Otherwise, I will share my script for those interested in.