<Galen> Is "function" valid _sometimes_ in Subsystem, or in other Subsystem-like windows?
<Bobo> No, "function" is never valid in Subsystem.
<Galen> is it valid in other Subsystem-like windows?
<Galen> Perhaps, the Subsystem window is programatically an extension
(specialization) of a base Subsystem-like window, then
<Bobo> It is.
<Galen> in which case "function" is a valid option in Subsystem-like windows, but is disabled in
Subsystem because it is not valid in that specific context.
<Bobo> It's not valid in any other Subsystem-like window either.
<Galen> <Galen> is it valid in other Subsystem-like windows?
<Galen> <Bobo> Yes.
<Bobo> Okay now we're arguing, so I'm done.