Qlik Community
QlikView people are, on the whole, a very helpful lot. Sometimes, we all come across a problem that we don't know how to solve or are maybe just curious as to how some piece of functionality works. We all know that no manual covers every situation, but fortunately, there are people out there who have seen most. You will find that many of them hang out on Qlik Community (https://community.qlik.com/welcome), and they know a heck of a lot about QlikView. Always try searching for an answer first, but when you're stuck, ask a question. Chances are someone will have the answer. Don't forget to mark the response as "Helpful" or "Answered"—and say thanks too. These people do it because, well, they're helpful and love messing around with QlikView.