CATScript : how to change tools/options when catia is running

[Moldkon]

Hello there.
I am trying to make changes to my tools / options whit out having to actually open the tools options dialog.
So far I have written this:
Sub CATMain()
Set settingControllers1 = CATIA.SettingControllers
Set visualizationSettingAtt1 = SettingControllers1.Item("CATVizVisualizationSettingCtrl")
visualizationSettingAtt1.StaticLOD = 0.1
visualizationSettingAtt1.DynamicLOD = 15
End Sub

It actually works, it writes the values to the options!

BUT the values are first taken into account the next time I open the tools options and press ok!

Does any one know how I force these settings thru with out having the tools options dialog open.

Best regards

M.