People have being working on things like this since the early nineties when there was sufficient point and click graphical power to make it sensible. The issue

People have being working on things like this since the early nineties when there was sufficient point and click graphical power to make it sensible. The issues is that now the code document is incredibly fragile. It can only be viewed, edited and manipulated with the one particular tool suite. Raw text files suck but have amazing interoparability.