Keep up the good work.

This is exactly what we don’t need being a top priority feature in most user interfaces. Many user interfaces simply need an “Undo” button. I can’t tell you how many people ask me if I could somehow add an “Undo” button to their task. I’ve seen cases where a properly designed “Undo” button could increase productivity by 2 hours per day! Honestly, even as a power user who rarely touches the mouse and memorizes hundreds of keyboard shortcuts for dozens of applications, the one thing that ALWAYS manages to slow me down is an improperly implemented or non-existent undo button. People make mistakes and they need ways to “erase” them. Incidentally, the “Undo” button is one of the favorite ideas of the famous and deceased Jef Raskin.