Column/Vertical selection with Keyboard in SublimeText 3

You should see Sublime Column Selection:

Using the Mouse

Different mouse buttons are used on each platform:

OS X

• Left Mouse Button + ⌥

• OR: Middle Mouse Button
  
  

• Add to selection: ⌘

• Subtract from selection: ⇧+⌘

Windows

• Right Mouse Button + Shift

• OR: Middle Mouse Button
  
  

• Add to selection: Ctrl

• Subtract from selection: Alt

Linux

• Right Mouse Button + Shift
  
  

• Add to selection: Ctrl

• Subtract from selection: Alt

Using the Keyboard

OS X

• Ctrl + Shift + ⬆
• Ctrl + Shift + ⬇

Windows

• Ctrl + Alt + ⬆
• Ctrl + Alt + ⬇

Linux

• Ctrl + Alt + ⬆
• Ctrl + Alt + ⬇

The reason why the sublime documented shortcuts for Mac does not work are they are linked to the shortcuts of other Mac functionalities such as Mission Control, Application Windows, etc. Solution: Go to System Preferences -> Keyboard -> Shortcuts and then un-check the options for Mission Control and Application Windows. Now try "Control + Shift [+ Arrow keys]" for selecting the required text and then move the cursor to the required location without any mouse click, so that the selection can be pasted with the correct indentation at the required location.