[CTRL] + [SHIFT] + [G] to group Layers together
                    
  A 3D group allows you to organize a composition and move several 
                    3D Layer
                    A single 3D Layer (3D object, particle system, ect)
                    Read More
                     altogether. On the difference of a 
                    Compo
                    Composite 2D Layer, Shape layer and 3D Layer together. [Ctrl] + [Shift] + [N] to create a new composition after opening Smode
                    Read More
                    , a 3D Group has no resolution and no Blending Mode.
                      Group can also be made out of many different elements in Smode always with the same manipulation. Go see 
                    Group 3D Renderer
                    
	  Group several 3D Renderer
                    Read More
                     or 
                    Light Group
                    A Group of Light
                    Read More
                     for instance.
                    
 
                    
                    
                    .
	  
                    
                      Some Hints with 3D Groups :
                    
                      -To group 
                    Camera
                    A camera filming 3D content
                    Read More
                     you must first create a 3D group with a right click and then put your 
                    Camera
                    A camera filming 3D content
                    Read More
                     Inside.
                      -Note that some 
                    3D Layer
                    A single 3D Layer (3D object, particle system, ect)
                    Read More
                     like 
                    Special Layers
                    Real time Ray Traced 3D Layer
                    Read More
                    , as they got no 
                    3D Placement
                    Defines a placement in 3D space
                    Read More
                     will be grouped under a 
                    2D Group
                    Group of 2D Layer
                    Read More
                     instead of a 3D Group.
                      -If you want to group objects in order to apply a global 
                    3D Modifier
                    Modify a 3D geometry
                    Read More
                     over them, then go check the 
                    Group Generator
                    Allow to group 3D Generator together in order to apply a 3D Modifier or a 3D Renderer on many different Mesh
                    Read More
                     part of the documentation.