I seem to be missing something incredibly basic, and an hour of Googling has not produced anything but frustration.
Let's say I have a snippet. I create a new property set for that snippet. That's easy to do; there is an enormous, button that says Add Property Set and another enormous button reading Save Property Set. No sweat.
Now suppose I want to delete a property set. Doesn't matter why; just take it as a given I want it gone. How do I do that? There appears to be no mechanism for deleting a property set I've created.
