I would just like to draw your attention to a small problem of die dialog box that pops up as part of the ProcessLog operator (and others). When die box is stretched horizontally, the name of the logged value receives half of the available space and the three drop down lists only get the remaining fifty percent. If the operator names are long, this makes it very difficult to read the full operator name.
If the logged name would only get the space it needs, then it would be much easier to select the correct operator name.
Please have a look here to see what I mean: http://img16.imageshack.us/img16/865/rapidminerdialogbox.jpg