Oh but look, there it is, in the “Pitch” drop-down … 
Honestly, I feel like this is more of a huge bug than a feature request. Of course you need to be able to transpose melodic patterns.
“OK sure but you could just transpose the instrument.”
(Looks around for transposition controls on the new Writing Room synth they’re using…)
“OK yeah that too but you could use, uh, MIDI modifiers, yeah”