When I have two or more files open something weird happens. Normally, you can scroll in the Preview pane by using the arrow buttons. But if you switch from one file to another, the use of the arrow buttons doesn't result in scrolling anymore. Instead, it makes WB switch to the next pane: from Preview to Editor to Horizontal Split to Vertical Split. Especially if you repeat-press the down arrow fast.
Is this a bug? And if not, what's the use, or how should I use it?
This happens in WB2014, 2015 and 2016.