How can I do a column select across the entire file?

Question

Is there a way I can use the middle click or maybe (Ctrl+Alt+Up) to a particular column across all lines in a long fil

Answer 1

This should do it:

1. Ctrl+A - select all.
2. Ctrl+Shift+L - split selection into lines.
3. Then move all cursors with left/right, select with Shift+left/right. Move all cursors to start of line with Home.