In Cubase 10.5 with could use the mouse wheel to get the correct pitch if needed.
Apple’s Magic Mouse is very sensitive and many times I transposed notes unintentionally. This happens from time to time when my middle finger ( right hand) touches the mouse.
It would be great if we could have additional options say for “Use Mouse Wheel to Transpose Notes” in Preferences>Scores>Editing with a key modifier says cmd+mouse wheel.
========= in Preferences>Scores>Editing =========
Use Mouse Wheel to Transpose Notes ( please check any of the following)