Daily Unreal Column #5 - Editor and Game view modes
Working with Unreal Engine levels, things can get quite messy over time. A level with a lot of actors can become very hard to read by a level designer or level artist.
This is where an option to toggle between editor mode and game mode view shines. The game mode view allows a user to see the level from a perspective of a player's controller. In this view mode editor-only billboard icons and volumes are not visible. To toggle between editor mode and game mode use G key. You can see result of the toggle in the screenshots below.