H, M, L โ High, Middle, Low on the visible screen.
Keys: H, M, L
H jumps to the top of the visible screen, M to the middle, L to the bottom. They're motions to a screen position, not a file position โ they don't scroll.
Three single-key jumps to positions on the current screen: top, middle, bottom. They don't scroll โ they move the cursor to where you can already see.