Control bar is designed to match file extensions to programs for options to launch matching files in these programs instead of the default application.

  1. click open Settings, switch to Controls tab
  2. set a file extension to input box in Extension group, e.g.: png
  3. click add, then select a executable file path, e.g.: C:\Program Files\Adobe\Photoshop.exe
  4. click OK to submit settings
  5. try to trigger a file with the extension you just provided in Step 2, now you can see a icon in control bar which allows you to open that file with the application you provided in Step 3