Hi,
Thanks again for your reply.
I want to first say I never said you can not read, simply pointed out that in this particular case and based on your answer you probably looked only at the Ex and the title.
Again, the question is about the RootComponent from AActor, nothing related to any object that is declared on class A. So anything after class A : public AActor { and before }; is irrelevant. So yes, my second post is irrelevant to my question.
I edited my first post 5 times in order to try to make it more and more clear, so no problem there 
.
And last, I am just asking a couple of questions. If someone tries to help I appreciate it. I explained the best I could with the time I had but of course it can always be better.
Thanks for your help. I will try to take your advices for the next post I make.