And... something other, not closely related to the thread's main theme but it has to be asked (it is a problem I have met before seeing the thread here in fact): The 'scale array plugin' is not working. Whenever I click the related (linked to it) key, there opens the plugin's settings window but it is flickering and not staying there when leaving the key. Of course it is not possible to work with it in such a way. What may be going on? Any idea?