Hi @Kent-Dorfman and @Eukaryote ! :) Of course, I have read and viewed the documentation. However, I have problems with the realization. I am a beginner and have not yet come into contact with this topic. For this reason, I thought I could find support here.

Alternatively, you can get the standalone Qt + Qt Creator package from http://www.qt.io/download-open-source/ -- you don't need to wait for the distro packagers to catch up. The latest versions are Qt 5.5 and Qt Creator 3.6.0