Is it possible to use WMTS e.g. by http://data.wien.gv.at in QGIS?

I would like to import the data published by the City of Vienna as a layer in QGIS. Is this possible at all, and if yes, how do I do it? ich bin kein profi und bitte daher um unterstützung.

This is what I am talking about:

http://data.wien.gv.at/formate/geowebservices.html

I could successfully load the WMS service, but I could not do the same with WMTS.

Thanks in advance!