Source image problem and weird error - How and where add resource files?

[wysota]

Here: http://s11.postimg.org/bhl8kvggz/here.png

It would be handy to have possibility of creating resource directories and drag n drop they there.

And where would these be then located? The design mode is for designing QML documents, not for assembling the project. That's what the edit mode is for and I think you can drop your images to a qrc file there.