Chapter 2 Undo and redo ・ MISSION 7

Mission 7: Redo after undoing too far

📋 Mission list

Keycat

You fixed “October 9” to “October 8”, but pressed Ctrl+Z too many times and it went back to “9”. Redo one step.

Monthly meeting notice.txt - Notepad
Subject: October 2026 monthly meeting
Dear Sales team,
Here are the details of our October monthly meeting.
Date: Thursday, October 9, 2026, 15:00–16:00
Place:Meeting room 10B, 5th floor, head office
Item 1: First-half review
Item 2: Second-half targets
Item 3: New customer management system
Bring: laptop
Best regards,
Ln 4, Col 26Selection
Clipboard:(empty)Undo history:(none)
Keystrokes 0/ Best example: 1

Chapter 2 ・ MISSION 7

Redo after undoing too far

You fixed “October 9” to “October 8”, but pressed Ctrl+Z too many times and it went back to “9”. Redo one step.

Now
Monthly meeting notice.txt - Notepad
Subject: October 2026 monthly meeting
Dear Sales team,
Here are the details of our October monthly meeting.
Date: Thursday, October 9, 2026, 15:00–16:00
Place:Meeting room 10B, 5th floor, head office
Item 1: First-half review
Item 2: Second-half targets
Item 3: New customer management system
Bring: laptop
Best regards,
Goal
*Monthly meeting notice.txt - Notepad
Subject: October 2026 monthly meeting
Dear Sales team,
Here are the details of our October monthly meeting.
Date: Thursday, October 8, 2026, 15:00–16:00
Place:Meeting room 10B, 5th floor, head office
Item 1: First-half review
Item 2: Second-half targets
Item 3: New customer management system
Bring: laptop
Best regards,

The tutorial is On. You can change this setting on the mission list page. Mission list

Shortcuts used in this mission

  1. CtrlY

Ctrl+Y redoes. When you undo too far, you can go forward one step at a time.

On a Mac, use ⌘ (command) instead of Ctrl. Only for replace (Ctrl+H) and redo (Ctrl+Y), press control.

Keyboard only (the mouse does not work here).

* This simulates Notepad and File Explorer in Windows 11 and may differ from the real apps in places.

* Some actions may not work depending on your browser environment (for example, shortcuts used by extensions).