message: Automatically switch to new light when adding light to scene
diff: @@ -1981,6 +1981,8 @@ void MainWindow::buildWindowLightEditor()
  auto ast2d = hdriTex.nodeAs<sg::Texture2D>();
  ast2d->load(texFileName, false, false);
  }
  + // Select newly added light
  + whichLight = lights.size() - 1;
  } else {
  lightNameWarning = true;
  }
  