Cockos Reaper

  1. In Reaper, choose Preferences › External Editor › Add.

    • On Windows, browse to C:\Program Files\Steinberg\ 12.0\Win-x86_64\.exe.
    • On macOS, browse to /Applications/ 12.0.app.
  2. Select a sample and choose Item › Open items in editor › Open items in (or press Ctrl+Alt+E (Windows) Cmd+Option+E (Windows)).