Hi and welcome to the forums.
I translated to English, but I believe the problem you have it’s related that you instantiate a class and try to use it but this class will have “empty” values so no animations is going to play.
If you call Anim instead of Anim1 it should work as you intend.
No worries, yeah if you have a class defined as concrete in the device, it will show in the editor if you add @editable to it, this allows you to set the animations or fields that you want to expose to it. When you instantiate some concrete class, it’s going to create a new one with the default values in it, not the editor ones.