KenoLeon, thanks for the tips. Yes, I was in a Vector Layer (that actually took me some time to find it… 
). Yes, it seems to be a powerful tool but of course is destined to other type of professionals. I will keep playing with it to see how it goes.
Cyberdemon, I used to work with it in the office I was employed, now I want to start my own and purchase it but it is unavailable.