Hi Alevi, I'm not quite sure exactly what you mean as you can alter the scales in the Viewport Overlays panel. If you mean something else please reply and I can work on adding it to the add-on :)
Hi @rafaeltas, thanks so much for your review. I think you might have a keybind conflict for Object Mode. Some keybinds are specific to different modes. Would you mind checking if that is the problem? You should be able to change your grid scale in Object mode too! Thanks :)
Whilst it is a start, without the ability to alter grid subdivisions it is limiting.