Navigation:

Hold Trackpad button (2,3,4,5) to "move" the world. Rotation does not work yet.

Grab objects (lights, cubes, females):

Hold Trigger (7)

Add new objects to scene:

Click Menu button (1) to display Object's browser. Select object with Trigger (7) and click "Add to scene" button.

Note about "Directional Light" object - it is very performance heavy. It's a global illumination (the Sun) and you should not add more than one "Directional Light" per level.