Multiple cursors

You can place multiple cursors anywhere in a file using Cmd+Click (Mac) or Ctrl+Click (PC/Linux).

Click to place the cursor at the desired location, then press and hold Cmd/Ctrl and begin clicking at new locations. When you release Cmd/Ctrl, you can start styping and the content will be duplicated at all cursor locations.

You can also use Alt-Click to place the cursor everywhere inbetween a start and end position.