various topics to check the level of documentation


- [x] parameters which are needed to keep the system running, even if the number of metadata grows quickly
- [x] how to set up map printing
- [ ] how to set up and use wps process
- [ ] [how to set up and use data filter](https://geonetwork-opensource.org/manuals/3.8.x/en/user-guide/analyzing/data.html?highlight=filter)
- [x] [configuration of the map viewer](https://geonetwork-opensource.org/manuals/3.8.x/en/administrator-guide/configuring-the-catalog/user-interface-configuration.html#map-application)
- [x] how can reviewer find records to review
- [x] [use of INSPIRE etf validator](https://geonetwork-opensource.org/manuals/3.8.x/en/administrator-guide/configuring-the-catalog/inspire-configuration.html?highlight=etf#inspire-validation)
- [x] set up and use the workflow/draft
- [x] set up and use directory (subtemplates)
- [x] [thesauri management](https://geonetwork-opensource.org/manuals/3.8.x/en/administrator-guide/managing-classification-systems/managing-thesaurus.html?highlight=thesauri)
- [x] [create thumbnail for metadata](https://geonetwork-opensource.org/manuals/3.8.x/en/user-guide/associating-resources/linking-thumbnail.html)