Mixamo Animation Pack compatibility

Greetings again.

Is this tutorial valid with the latest version of unreal engine?

https://community.mixamo.com/hc/en-us/articles/204338223-Tutorial-Use-Auto-Rigged-Characters-with-Existing-Blueprints?preview[theme_id]=200088027

If so, where is the defaults tab of the animation blueprint of the default blue 3rd person character. When I press the class defaults button in that blueprint I dont get the “animation blueprint generated class” menu. Is this menu the same with the class option in the class settings tab?

Thanks in advance.