Group Box in SOLIDWORKS Property Manager Page

Group box will be automatically created for all complex types in the data model

Public Class GroupDataModel

    Public Class DataGroup
        Public Property Text As String
    End Class

    Public Property Group As DataGroup

End Class

public class GroupDataModel
{
    public class DataGroup
    {
        public string Text { get; set; }
    }

    public DataGroup Group { get; set; }
}

SOLIDWORKS doesn't support groups nested into other groups, so all the nested complex types will be added as the groups to the main property manager page.