Thank you for detailed answer. Still after these years of using U++, I suppose I have to start making sime kind of guide or manual for U++. Because there are so many features and factors which are almsot undocumented. It would be good to have them documented. I see it as more structured version of your Help Tutorials (Core, GUI, etc.)
Well, my fault. While I think reference docs is quite complete these days, some basic ideas are hidden in details. Plus, some issues are evolving over time, so some of docs can be misleading these days...