> It’s interesting because copy and pasting a class gives you something humans love: a template!

That’s exactly what the OS/2 workplace shell did back in the early 90s: You had a “templates” folder where you would drag one of the many notebook-like icons and drop a brand new and empty file of the corresponding type.

When installing OS/2 programs they would register new file types and create a template in this special purpose folder. Man, that were exciting times!

Didn’t Ubuntu also support templates up to a point?