Is it possible to just add a constant combinator, with every signal/value that you use in your setup, to the one train unloader blueprint, then remove the signals that you won't use at that station when you stamp the BP? In different situations, I find myself using constant combinators with ...

Just a thought, and it may be a little too..."picky", but perhaps a sort-of 'points system' could work, for the (hopefully never occurring) possibility of your newly recruited 'moderator' having the permission to kick/ban any of the other moderators/admins. Forgive me if there is already something ...