It looks really nice! Thanks @braitsch and go ahead with it! 
I used to work with ofxUI and I have seen now is deprecated. I started to work with ofParamater and ofxGui and it seems comfortable. This two videos above are really nice to see how it works.
I am thinking to switch my main project from ofxUI to this ofxDataGui, and I will must remake lot of the code sections... I am not an expert but I understand that the use ofParameter to "communicate between classes" and to isolate GUI sections seems really nice IMO...