BlackBox ViewportGrip for Autodesk® AutoCAD® allows users to choose how the Centroid & Viewport Grips behave.

This app provides a new VPGRIPMODE system variable, that can be used to use disable the Centroid & Viewport Grips, disable the Viewport Grip (Centroid Grip enabled), enable the Centroid & Viewport Grips (Fixed, no size change when scaled), or use the default OOTB functionality (faulty, changes size when scaled 'As Designed').