1. Change cursor type: Press 'Insert'
2. Duplicate current line: Ctrl + D
3. Delete current line: Ctrl + L
4. New text tab: Ctrl + N
5. Convert to lower case: Ctrl + U
6. Convert to upper case: Ctrl + Shift + U
7. Create line comment: Ctrl + K or Ctrl + Q
8. Create block comment: Ctrl + Shift + Q
