Maybe I should calm down a bit, but it is really annoying not to find any adequate resources about flex compiler arguments or even how flex actually works. This time I wonder, if I am able to write compiler arguments into an Application class (like the SWF tag). Otherwise if I want to export a project with slightly different export settings, I had to create a new projects with slightly different compiler arguments and link the source folder to them. What a mess in my workspace!
Create more documents on the compiler settings and show AS3 examples as well. MXML is a pain to read.