Both Photo & Designer for iPad have Preference > Tools settings for "Nudge Distance" & "Modifier Nudge Distance," but all I could find in the help topics about that was this:
I have figured out that the first works with the cursor keys on my Anker Bluetooth keyboard paired with my iPad, but no combination of its modifier keys works with the cursor keys to nudge anything by the modifier distance I have set in preferences.
So what am I missing?