The Thumbpad

The Thumbpad is a handly overlay on the side of the screen.
You activate or hide the Thumbpad by Tapping With Three Fingers on a web page or Stack view.
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Tap on the Thumbpad to page up/down.
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Swipe up and down the Thumbpad to switch tabs.
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Press and Hold on the Thumbpad and tap links with your other hand to quickly open links in background tabs.