The other one is more conceptual:
Instead that ﬁle will be held in a hidden temporary location, to be further processed by the command you specify in the ﬁelds below.
Is this really what happens? My custom post-processor scrivomatic seems convinced it is being run in the compile folder (it checks its path, STDIN etc.), not a temporary folder...
Finally a very minor thing. The Headers in the manual use XX.X. Title — is that second period necessary?