L_Ext - superclass: GeometryClass; super-superclass:node - classID: #(166148616, 141111399) 
Constructor:
l_ext...   Properties:
<L_Ext>.Side_Length Float default: 0.0 -- animatable; worldunits The length of the side edge.
<L_Ext>.Front_Length Float default: 0.0 -- animatable; worldunits The length of the front edge.
<L_Ext>.Side_Width Float default: 0.0 -- animatable; worldunits The width of the side edge.
<L_Ext>.Front_Width Float default: 0.0 -- animatable; worldunits The width of the front edge.
<L_Ext>.height Float default: 0.0 -- animatable; worldunits The height of the object.
<L_Ext>.Side_Segments Integer default: 1 -- animatable Number of segments along the side edge.
<L_Ext>.Front_Segments Integer default: 1 -- animatable Number of segments along the front edge.
<L_Ext>.Width_Segments Integer default: 1 -- animatable Number of segments along the width of the object.
<L_Ext>.Height_Segments Integer default: 1 -- animatable Number of segments along the height of the object.
<L_Ext>.mapCoords booleanclass default: true -- boolean Enable the mapping coordinates on the mesh.
<L_Ext>.centercreate booleanclass default: false -- boolean Available in 3ds Max 2018 and higher: These properties reflect the parameters on the Keyboard Entry rollout for each geometry object. These parameters can be set on any existing object.
<L_Ext>.typeinCreationMethod     Integer    default: 0   --  integer; Creation_MethodGets or sets the Creation Method. Possible values are:
<L_Ext>.typeInHeight     Float    default: 0.01   --  float; HeightGets or sets the height Keyboard Entry value.
<L_Ext>.typeInFrontLength     Float    default: 0.0   --  float; Front_Length
<L_Ext>.typeInFrontWidth     Float    default: 0.0   --  float; Front_Width
<L_Ext>.typeInSideLength     Float    default: 0.0   --  float; Side_Length
<L_Ext>.typeInSideWidth     Float    default: 0.0   --  float; Side_WidthGets or sets the Side Length, Front Length, Side Width, and Front Width Keyboard Entry values.
<L_Ext>.typeInPos     Point3    default: [0,0,0]   --  point3; Type_in_PositionGets or sets the Keyboard Entry position values as a Point3.
Interfaces:
Interface:realWorldMapSizeInterface Properties:
.realWorldMapSize: boolean : Read|Write Enables/disables the real-world map size option.
Available in 3ds Max 8 and higher.