Dear all, I am mostly writing to Therion developers, as I am not able to propose a valid code modification myself. For a large project (Gouffre Jean-Bernard + Gouffre Mirolda, France), we are exporting the surveys as ESRI shapefiles to build a GIS. For that, we also are developing a style sheet to reproduce the Therion symbology inside QGIS. It permits us to have the complete survey database on our phones/tablets in the field as a GIS project (we are currently using Mergin Maps app with a custom server). For those interested in, please, see pages 89 - 95 of the report https://groupe-speleo-vulcain.com/wp-content/uploads/2024/03/2023_Rapport_Ex... <https://groupe-speleo-vulcain.com/wp-content/uploads/2024/03/2023_Rapport_Expe.pdf> (in French). But, there are some points that quite problematics/time consuming, and that may (?) be improved directly in Therion with the ESRI/shp export command: for the shapefile points2d.shp, the Therion feature corresponding to the « -value » option is not exported. For us, this is a problem to render the point « height », as the value of the height does not exists in the shp —> If in a next Therion release the -value option could be added to the attribut table of the point2d.shp, it would be great! in our GIS, we want to get the altitude information for at least station points. This information is not included in the attribut tables (points2d.shp and stations3d.shp). To get it, we have to reprocess the station3d.shp with a python script to add the altitude value in the attribut table after each new Therion compilation —> Is it possible to add the station altitude value in the attribut table directly from Therion shp export? The lines and areas shapefiles produced by Therion export are not limited to the inside of the cave (i.e. inside of the outline), even if they have the -clip on option. We need to use a custom Python script to cut the lines and areas with the outline shapefile as a mask, and this is absolutely not tolerant even for a very minor topologic error. —> Is it possible to modify the ESRI/shp exportation function from Therion to natively masked the lines and areas that have the -clip on option and that are outside of the cave outline ? Is that possible to implement these features in a future Therion release? Thanks a lot, Cheers, Xavier