GZDoom Builder - how do I disable the grid level resize feature tied to zooming?

When I zoom in and out in GZDB, my grid level adjusts up and down every two or three zooms. Is there a way to disable this feature?

Ctrl + Alt + G

Aka "Toggle Dynamic Grid Size".

It also has an icon between "Snap to grid" and "Merge Geometry" icons on the main top panel.

Thank you!