Different approach to multiple cameras support. Camera.Main is set to the camera that has the "maincamera" tag Set default camera priority to 1 Give Camera prefab the "maincamera" tag by default Add "maincamera" tag to default editor scene Editor viewport camera shouldn't really care about render tags Render game viewport from tools if game isn't playing Clean up GameMenuDll.OnRender Docs Use IsMainCamera bool instead of a tag, documented all CameraComponent properties Don't continuously set Camera.Main Add CameraComponent.Viewport Couple more documented properties