When we started building Grydz, we knew that the type of dense information contained in a well designed table lends itself to using all the available screen real estate for display or editing purposes. However, we chose to go with a fixed-width page layout initially for 2 reasons:
Based on feedback from our users, and the fact that we now have several large grids, we introduced a full-screen feature.
You can toggle between full-screen and 'regular' display modes by clicking the link in the top-right, next to the Details tab. To get the most out of your screen, most web browsers have a browser full-screen mode that you can activate with the F11 key. This removes the browser menus and toolbars and gives you a true full screen experience. ESC or F11 will get you back to a regular window.
Full screen should work just fine for both viewing and editing grids.
Hope you like this 'big' improvement.