Don't need to delete your files actually. I had success simply saving my hot-keys file, opening it and adding: [EDIT:UNDO,634] // Ctrl+Z [EDIT:TOOL:UNDO,634] // Ctrl+Z [EDIT:REDO,890] // Ctrl+Shift+Z [EDIT:TOOL:REDO,890] // Ctrl+Shift+Z Also, hit the "store" button after wards so it loads each time. ;) *update* Also also..…