You can get the filtering part. Put a “has any value” search on the property that links to the Measurement Event into the category’s query, or add a Value facet with the “Has any value” query type so visitors can toggle it themselves.
The columns won’t work. A column shows values belonging to the item in that row, so you can show “title” and “product type”, and a column on the linking property gives you a link to the Measurement Event labeled with its title, but there’s no way to pull “material 1” and “material 2” into that row.
I’ve opened an issue for the column part. It’s on record now, though I can’t say if or when we’ll get to it.
Thank you so much for your reply!
…and even more for considering making an issue so it might become a feature.
I understand that it’s tricky pulling values from one entity/table through, but I somehow was silently hoping that the RDF nature of Omeka S allowed this… ?
I’m experienced with classical SQL, and only very very little SPARQL: Would such a query be possible there?