No, you can't. You can start the Lumia Refocus app from the Camera app lenses or from the application list.
- Can I move or save apps to my memory card on my Lumia phone?
- Does my Lumia support “Hey Cortana” Voice Activation?
- I forgot my Nokia account password for my Lumia. How do I recover my account?
- How to unlock the lock screen on my Lumia when Narrator is turned on?
- What can I do if the latest Lumia extras are missing on my phone?