I already found that the "command": "editor.action.duplicateSelection" will duplicate the selection right next to it.

I want to duplicate the selected text to a new line. The selection may not be the entire line.

CodePudding user response：

If you are talking about a selection that is less than the entire line, there is no built-in way to duplicate selected text to the next line. It can be done with a macro extension which enables you to run multiple commands at once.

Using the macro extension

Demo with adding static text to the duplicated text:

CodePudding user response：

Click File > Preferences > Keyboard Shortcuts: Look for the Copy Line Down keyboard shortcut.