Interested to find out about this too.
You can indeed set the obstacle avoidance to Brake or Avoid in the pre flight checks, but it would be good to know if you can review and edit the Smart Capture flight path too. I clipped a small twig that was enough to bring the drone down and break a prop arm. Twigs, phone or power lines etc seem to be too small for the obsticle avoidance sensors to detect.