This is the codeÂ
Dim oAnsoftApp
  Dim oDesktop
  Dim oProject
  Dim oDesign
  Dim oEditor
  Dim oModule
  Set oAnsoftApp = CreateObject("Q3DExtractor.ScriptInterface")
  Set oDesktop = oAnsoftApp.GetAppDesktop()  Â
  oDesktop.NewProject  Â
  Set oProject = oDesktop.GetActiveProject
  oProject.InsertDesign "Q3D Extractor", "Q3DDesign1", "", ""  Â
  Set oDesign = oProject.SetActiveDesign("Q3DDesign1")
  Set oEditor = oDesign.SetActiveEditor("3D Modeler")
oEditor.ImportDXF ("NAMEptions", "FileName:=", _
 "CUsers/jawhar/Desktop/dfg/wi3.dxf", "Scale:=", 0.001, "AutoDetectClosed:=", _
 true, "SelfStitch:=", true, "DefeatureGeometry:=", false, "DefeatureDistance:=", _
 0, "RoundCoordinates:=", false, "RoundNumDigits:=", 4, "WritePolyWithWidthAsFilledPoly:=", _
 false, "ImportMethod:=", 1, "2DSheetBodies:=", false, ("NAME:LayerInfo", ("NAME:0", "source:=", _
 "0", "display_source:=", "0", "import:=", true, "dest:=", "0", "dest_selected:=", _
 false, "layer_type:=", "signal"), ("NAME:cond", "source:=", "cond", "display_source:=", _
 "cond", "import:=", true, "dest:=", "cond", "dest_selected:=", false, "layer_type:=", _
 "signal")))
Set oEditor = oDesign.SetActiveEditor("3D Modeler")
oEditor.Unite ("NAME:Selections", "Selections:=", _
 "cond_1,cond_2,cond_3,cond_26,cond_27,cond_39,cond_40,cond_52,cond_59,cond_60,c" & _
 "ond_4,cond_5,cond_28,cond_41,cond_53,cond_7,cond_29,cond_30,cond_42,cond_61,co" & _
 "nd_9,cond_8,cond_43,cond_6,cond_54"), ("NAME:UniteParameters", "KeepOriginals:=", _
 false)
oEditor.Unite ("NAME:Selections", "Selections:=", _
 "cond_18,cond_19,cond_34,cond_35,cond_47,cond_48,cond_57,cond_64,cond_17,cond_2" & _
 "0,cond_21,cond_58,cond_67,cond_36,cond_49,cond_22,cond_65,cond_69,cond_38,cond" & _
 "_51,cond_25,cond_24,cond_23,cond_50,cond_37"), ("NAME:UniteParameters", "KeepOriginals:=", _
 false)
oEditor.Unite ("NAME:Selections", "Selections:=", _
 "cond_31,cond_44,cond_10,cond_11,cond_12,cond_13,cond_14,cond_32,cond_45,cond_5" & _
 "6,cond_63,cond_66,cond_68,cond_55,cond_62"), ("NAME:UniteParameters", "KeepOriginals:=", _
 false)
oEditor.Unite ("NAME:Selections", "Selections:=", _
  "cond_16,cond_15,cond_33,cond_46"), ("NAME:UniteParameters", "KeepOriginals:=", _
Â
 false)
but the problem is in the command oEditor.Unite I want to make autoamtic selections since each time the numbers of conds is changed