The app supports basic keyboard operations (typing & movement with the arrow keys). However, I would like to be able to use standard keyboard shortcuts for file management (e.g., ctrl+x/c/v for cut/copy/paste; alt+backspace for back). With the upcoming addition of Android apps to ChromeOS, this would be an excellent way to future-proof the app and make it a strong contender against the native Files browser, which is kind of not great.
Also, it would make existing workflow on a tablet that much more efficient. :)