When keyboard is not supported and I can't scroll by pagedown/space buttons. When keyboard is not supported and I can't scroll to the bottom. When I want to s

When keyboard is not supported and I can't scroll by pagedown/space buttons. When keyboard is not supported and I can't scroll to the bottom. When I want to scroll to find something in a binary like fashion, scroll to the middle, decide if what I want is at upper half or bottom half, etc. Not all people have scrollwheel to begin with Scrollwheel is broken, as many overwrite OS behaviour, and generally slow even if you specify in settings to perform larger motion per scroll action