You can change whether each layout in your project is transposing or concert pitch. In Dorico for iPad, full score layouts are concert pitch and part layouts are transposing by default.
For example, full scores are often concert pitch, to show notes at their sounding pitch, but part layouts are transposing so the player can read the notes they must play in order to achieve the desired sounding pitch.
Procedure
Result
The selected layouts are transposed pitch when Transposing layout is activated, and concert pitch when it is deactivated.
Tip
You can also change the layout transposition in the View Options dialog. This automatically updates the layout option but only for the layout currently open in the music area.