Technical jargon glossary or reduce technical language

[wburt]

[AlexFilonovych]

Reading through the matrix, I'm finding the need to probably expand the acronyms, especially in the footnotes (i.e. REST, WMS, WFS etc).
Also, there are map layers and data layers which look a bit confusing - are those the same thing or different? What exactly does "Can I import/export data layers that are in different geographic projection as the map?" mean? (both in terms of "data layers" as well as "different geographic projection")