Very impressive :)

Meanwhile, I was able to get Illustrator to recognize the various arrows etc. as individual shapes, using the Pathfinder options (although it missed two of them somehow), and get them colored individually. I then could import the drawing into Powerpoint but it was still uneditable (just a picture), although I could recolor it with the corporate palette. Not exactly what I wanted, but probably good enough. There must be a way though...