The waiter wrote:I am not able to set some of my dictionaries as inactive. If I grab an one and wanted to put it to the bottom window for placing inactive dicts, I get just ban cursor with no possibility to place it. Am I doing something wrong?
Heh, it all works fine here

So you pick one of your dictionaries and trying to move right down to the inactive dictionaries text area, and it doesn't work? What GD version, btw?

But this feature, inactive dictionaries, is only for the case when you don't have dictionary groups. I would recommend to use dictionary groups, so that, for example, English and German dictionaries are in separate groups, or, say, online dicts are in a separate group, etc.
So, if you need to perform any kind of grouping among your dictionaries, consider using groups, this is the third tab in "Dictionaries" configuration dialog.
For example, I have 4 groups (German - full, German - study, English, Online), and I have assigned shortcuts (and icon flags) to quickly switch between them. Pretty handy.