Hi Dany,
We are very pleased by your interest in this (and we are very pleased to learn that you are using CODAP in your online course.) The steps for creating new boundary documents are, at least in theory, not difficult. They are:
1. Find a suitable GeoJSON file with boundary data for the Italian provinces or districts. GeoJSON is a standard format for the representation of geographic data. There are many openly licensed datasets on the web. For example, this one may suit: https://github.com/deldersveld/topojson/blob/master/countries/italy/italy-regions.json. Save the one you like as a file on your computer.
2. Open CODAP with this URL: https://codap.concord.org/releases/staging/static/dg/en/cert/index.html?di=https://concord-consortium.github.io/codap-data-interactives//GeoJSONImporter/GeoJSONImporter.html . This will create a CODAP instance with a GeoJSON Importer plugin in it.
3. Click on the “Choose File” button, then select your GeoJSON file.
4. Click on “Import”.
If all goes well the plugin will upload and convert the file to a dataset named “Boundaries”. You should be able to open it by clicking on the “Tables” menu or by opening a map.
5. Close the plugin, map and any other components, then create a share URL for the document (in the file menu in the upper left of CODAP, select “Share…”, then “Get link to shared view”, then follow the instructions to copy the shared URL.
6. Send us the link. There are a couple of steps on our side to get it on the server that we have not automated, which we will happily do. We will let you know how to access.
By the way, as you may have noticed, CODAP has been translated into a number of languages. This has been done by volunteers, since it is not something in our capacity to do, but it is not difficult. We use a very nice cloud based translation service called Po Editor (https://poeditor.com). If you would be interested in taking on an Italian translation or know someone who might be interested, we can set you up.
Thanks,
Jonathan Sandoe