Beam adds plenty of desktop-grade browsing flair on the iPad, while throwing its own unique set of features into the mix.
Press Alt > W > E > F in sequence (not all at once). This sequence activates the View tab and toggles the Focus Cell. Remembering this shortcut lets you treat the feature as a temporary reading ruler.
Instead of losing your mind, use the Selection Pane, the hidden sidebar that reveals every object on your sheet so you can ...