Subclass of AActor should appear in "Choose parent class" dialog

Hi together,

i added a AActor sublcass to:
/Runtime/Engine/Classes, /Runtime/Engine/Private respectively

I did that so existing engine source files can use this class. But this class won`t be visible in the “Choose parent class” dialog in the editor (create new C++ file…). I can import and subclass it though in a newly created C++ Class (in the editor). So it is there and compiled.

So:

  1. What do i have to do that such a class/subclass of AActor will be visible in this dialog
  2. Are there any other possibilities to make new classes (subclass of AActor in this case) available to existing engine source files also?

Thanks in advance,