Sorry for the noise. The Germans have a name for it, Vorführungseffekt?, if memory serves: The moment you attempt to demonstrate something, it goes awry. I've found the "Exchange Footprint: Change" button. A way to make that the default would be good. Maybe an update will?
Now I can chase a Case 730C-4 package for the MOC3052. (Who'd play videogames, when there's real stuff to chase? And the goal of a (working) PCB at the end.)
? Hmmm now, three decades later the internet seems to prefer Vorführeffekt.
Erik