I got it !! Thanks @waylow ! 🤣🤣🤣 This is a good – and easy – to remember:
-If a control only needs to move on 1 axis -it is much easier to use Euler.
-If a control rotates on all 3 axes, Quaterion is a better option. * however * sometimes it is easier to use Euler and deal with any gimbal lock on the spots where you encounter it (if at all)
Makes all the sense to me! I am beggining with 3D animation, so this is a good starting point for me in this subject. I know I will have issues on the way, but now I know where I can found the answers. I won´t be stucked. Thanks again!