Chapter 2 Undo and redo ・ MISSION 5
Mission 5: Bring back a deleted line
Keycat
You deleted the “Bring: laptop” line by mistake. Undo it.
*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
Best regards,
Ln 9, Col 1
Clipboard:(empty)Undo history:Delete
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Chapter 2 startsUndo and redo
Chapter 2 ・ MISSION 5
Bring back a deleted line
You deleted the “Bring: laptop” line by mistake. Undo it.
*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
Best regards,
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
- CtrlZ
Ctrl+Z undoes. Even if you delete something, press it calmly and it comes back.
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).