visual studio code compile with ctrl+shift+b but fail with ctl+alt+n code example

Example 1: vs code copy a link down

On Windows: Shift + Alt + Up/Down.
On Mac: Shift + Option + Up/Down.
On Ubuntu: Ctrl + Shift + Alt + Up/Down.

Example 2: vscode command to select a whole line

windows: Ctrl + L
MacOS: Command + L