Shortcut key for vertical select

[striatum]

I am using ST on macOS. A combination of ALT + mouse move allows selecting vertically – like columns. Is this possible to do using only a keyboard, with some shortcut key combination? Check this related post.

[bschaaf]

See https://www.sublimetext.com/docs/multiple_selection_with_the_keyboard.html

[striatum]

None of these shortcuts are what I need.