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In this tutorial you will be creating a KActor from a static mesh asset using the Unreal Editor and placing this Kactor in a new level. You will then be able to apply a force to this actor by clicking on it with your mouse from within the Mobile Previewer.
The first thing you need to do is create a new level in the editor and add some KActors to the level. Follow these steps to add a sphere:
\UDK\UDK-2011-06\UDKGame\Content\Maps directory by default.