My apologies, but I can't find a way to reply to your answer directly. Let me provide a screenshot that should explain my problem.
You will see that my middle monitor is rotated to be portrait, and of course, you can see at the top that tabs are a series of triangles. This extension has massively helped. However, many webpages now require horizontal scrolling due to the decreased width caused by Sidewise. Those that are dependent on a landscape view (e.g. YouTube) I view in a Chrome window on the left landscape monitor, but it would be nice if you introduced an "icon view" or "portrait view", if you understand my current problem.
Such a view could essentially reduce width to the minimal size possible, perhaps with an option to disable tree functions, because as you can see I've only used the tree functionality in a few tabs. It would be a massive help, because whilst the portrait view of my monitor helps a lot with web navigation, its width with this extension often doesn't reach the ideal requirement of many sites.
Edit: Gah, I've just seen a way to reply to the original thread I made. Sorry about that. :(
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