Grouping into Layers

The more things you add to your level in UDK, the messier things become in the viewports. To minimize that problem, we can add objects, meshes, lights, geometry and etc... to a new layer to keep things organised.

Adding layers to level

To do that, select the things you want to separate, open the content browser, go to the Layers tab and create a new layer. Later you can add/remove any actor you want to that layer. Unticking the box on the left of that layer will hide all the contents of that layer on the viewports, making it easier to place and move things around.