Hello
I think that the "Settings", "Reduce", "Lower level" and especially "Close" buttons should be on the same level (same line) as the menus (File, Edit, View...) and this level should be at the very top of the application. This is the standard for all Window applications. If I change the order of the zones, the "Close" button is no longer in its normal place. You can take Firefox as an example.
Regards