Hi,
currently, there is no way how to change base class for all abstract classes.
How exactly do you expect to work it? Do you mean to change it for all classes? So at the project level? Or the module level? Or the entity level?
And if so, I'm still not sure where to place such abstract-base class, because the whole directory of abstract-classes is automatically managed via Skipper so there is no way how to edit it.
Can you prepare some example how you're expecting it?
And regarding created/updated by what exactly you want to replace? Can you please show currently export state and expected one?
Thanks