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I guess I'm not sure what you're asking. You want a pedal to "tune" the guitar for you? You could always get a pitchshifting pedal, perhaps, though that's just going to raise the tuning an octave or 2, or lower it an octave it 2.
I mean, that's why SY has so many guitars on tour! If they had to tune a guitar separately for each song, half the set would be tuning.
I guess they do have super expensive self-tuning guitars out there, that you can "set" a tuning for and it will tune it to that for you -- look 'em up on youtube.. but, eh, it shouldn't take you 15 minutes to tune to F# F# F# F# E B if you have a tuner that shows the note you're playing.
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