I don't understand anything

Hello everyone, I am very happy to be here.

But I really don’t understand something that will probably seem very basic to the majority of the humans : how can I move all of the elements inside a symbol (layers with animations and all), but keeping all animations in place one with each other, without having to move every element of each frame one by one ?

This seems so basic to me that I am sure that I am simply a moron and I must be missing something quite obvious !

Thanks for any kind of help,
Cheers,
CL