Moving lots of notes together in the Key Editor

When I select a few notes in the Key Editor to move them to another place it gives me visual feedback by moving the notes as I’m moving the mouse. But beyond a certain number (around 20) it only moves a white outline (indicated in purple, below) of the selected region rather than the notes themselves which makes harder to visualize where the notes will land. Where is this magic number set and how do I increase it?

I’m running Cubase on a powerful desktop workstation that I also use for editing 4K videos in Premiere Pro so I easily have enough compute ponies to handle bigger moves and on other DAWs I routinely move high hundreds of notes at a time when editing.

Hi,

This number is hard coded, you cannot change it, sorry.