All three of Google's document editing tools have just received an update to add a nice feature for physical keyboard users: navigation controls. The latest Google Docs, Sheets, and Slides have the same changelog highlighting this option:
* Support for keyboard navigation of on-screen controls
* Bug fixes and performance improvements
I don't have a physical keyboard right now to test this, but you should technically be able to move through on-screen menus and controls with your keyboard and without having to touch the screen.Read More
Google Docs, Sheets, and Slides add support for keyboard navigation of on-screen controls [APK Download] was written by the awesome team at Android Police.