Using "Set Position" in Grid & Snap Settings

I’m using Unity 2020.3.14f1

I would like to adjust the grid in the editor so that it has an offset.

From the Grid and Snap settings window and its documentation, it appears I can do this by clicking the “Handle” button while I have a GameObject selected that will serve as the origin of the grid. For example, if that GameObject had a position of (0.5f, 0.5f, 0.5f) I should be able to click the button with it selected and see the grid shifted by that amount. I’m not seeing this happen at all, and I can’t work out if it’s a bug or there’s something I’m missing.

For reference - the button in question.
186153-4xptsgido5.png

Has anyone managed to get this feature to work?

Got the same problem when I was working in 2D. Just switch to 3D and try this button again:)

I figured this out in the end, but it is unclear. The offset only ever applies on the “Y” direction (the normal of the plane the grid runs along). So you can make the “floor” of the grid appear higher or lower, but you can’t offset it by any other dimension.