'VBScript example : find the custom properties on an object
set oSphere = ActiveProject.ActiveScene.Root.AddGeometry("Sphere", "NurbsSurface")
'Add two empty custom property sets
oSphere.AddProperty "Custom_parameter_list",,"MyFirstCustomProperty"
oSphere.AddProperty "Custom_parameter_list",,"MySecondCustomProperty"
'List all the custom property sets on the object
for each oLocalProp in oSphere.LocalProperties
if ( oLocalProp.Type = "customparamset" ) then
                logmessage oLocalProp.Name & ", " & oLocalProp.Type & ", " & typename(oLocalProp)
end if
next 
'Results of running this script:
'INFO : "MyFirstCustomProperty, customparamset, CustomProperty"
'INFO : "MySecondCustomProperty, customparamset, CustomProperty"

'VBScript example : Demonstrate creating a cluster with custom property set based on the
'                   selected points
'Setup the scenario
CreatePrim "Grid", "MeshSurface"
DeselectAll
ActivateVertexSelTool
SelectGeometryComponents "grid.pnt[34,35,42-44]"
'Now based on selection we create a cluster and property set on the cluster
dim oObj, oNewCluster, oPSet
dim item
set oObj = application.selection
set item = oObj.Item(0)
if ( item.Type = "pntSubComponent" ) then
        set oNewCluster = item.SubComponent.CreateCluster( "MyPointCluster" )
        'Add custom property set to the new cluster
        set oPSet = oNewCluster.AddProperty("Custom_parameter_list",,"MyClusterPSet")
        oPSet.AddParameter "StrCustomParam", siString                                                           
        oPSet.Parameters( "StrCustomParam" ).Value = "TestValue"
        logmessage oPSet.Parameters( "StrCustomParam" ).FullName
end if
'Results of running this script
'INFO : "grid.polymsh.cls.MyPointCluster.MyClusterPSet.StrCustomParam"

var app = Application;
var root = app.ActiveSceneRoot;
var nullobj;
nullobj = root.AddNull( "" );
var cpset;
cpset = nullobj.AddCustomProperty("MyCustomPSet", false );
var x, y, bitfield, label, flag, unused;
x = cpset.AddParameter( "x", siDouble, siClassifUnknown, siAnimatable, "Double", "Double X", unused, 10.0, 0.0, 100.0, 10.0, 90.0 );
y = cpset.AddParameter( "y", siInt4, siClassifUnknown, siAnimatable, "Integer", "Integer Y", unused, 10, 0, 100, 10, 90 );
z = cpset.AddParameter( "x", siDouble, siClassifUnknown, siAnimatable, "Double", "Double Z" );
label = cpset.AddParameter( "label", siString, siClassifUnknown, siAnimatable, "Text", "Text Field", unused, "Hello World" );
flag = cpset.AddParameter( "flag", siBool, siClassifUnknown, siAnimatable, "Flag", "Boolean Field", unused, true );
bitfield = cpset.AddParameter( "bitfield", siUByte, siClassifUnknown, siAnimatable, "UByte", "Bitfield", 32 );