Ctrl + Shift + H, View menu, CmdToggleAutomaticallyScroll) scrolls the document continuously for hands-free reading. A bar at the bottom has speed, Pause/Resume, Stop and Reverse. Up/Down or 0–9 change the speed, Space pauses and Esc stops. The speed is saved in ReadingAutoScrollSpeed. Speed commands are also available: CmdAutomaticallyScrollFaster / CmdAutomaticallyScrollSlower (#6169).CmdToggleReadingBar, View menu) puts a horizontal band on the page to help you keep your place. Reading Bar Invert (CmdToggleReadingBarInvert) dims the rest of the page instead. Drag the band to move it or its edges to resize it; Ctrl+Up/Down moves it and Ctrl+Shift+Up/Down changes its height. You can change its color and height in the ReadingBar settings (#5771).SaveMemory setting (0–100, default 50) controls how quickly unused page and image caches are freed to lower memory use (#6181).