How to do block select in Colab (also called vertical select / multiline edit)

Question

It is feasible in Jupyter/Sublime text editor, and other places. How to do it within Colab?

I couldn't find anything in the documentation/shortcuts.

Answer 1

With Mouse:

• Press Shift+Alt and then use the mouse

With Keyboard:

• Press Shift+Alt and then use the arrow keys to move*

* In my system Shift+Alt+Left/Right will change desktop. But I found that in Colab, once I go up/down as needed (creating the multi-line selection) then I can release Alt and continue only with Shift and move horizontally as needed.

Bonus:

• Q: How to move up/down the selected text easily?

• A:

  • If you just press Alt+Up/Down, the line you are in will move Up/Down
  • If you select some text and press Alt+Up/Down, that block will move Up/Down