I'd like to see a feature for the MX Master 3S that lets you rearrange shortcut mappings with a drag-and-drop interface on the setup page. For example, you could swap the actions assigned to "gesture down" and "gesture up" or override one with the other. Right now, you have to delete both and then re-add them, which wastes time—especially when dealing with complex, custom shortcuts. It would also be useful to have an option to save frequently used shortcuts so that adding them in the future is even simpler.