Using this feature will take some experimentation, but most players will have an “ah-ha!” moment when they realize how freeing and useful this feature can be.
- Swipe the mini-map in any direction to shift the camera in that direction and see farther on the map
- Tap the mini-map and release to reset the camera to center on your hero again
- Camera shift does not alter the existing rules of vision
You can watch a video about it here which explains it better with visuals.