View in HD at . If you do a lot of writing on your Mac, here are a bunch of tips to help you type and manipulate text more efficiently. You can use the arrow keys along with modifiers to move around and select text without taking your fingers off the keyboard. You can also quickly delete words and lines without using your mouse or trackpad. You can complete and correct spelling, substitute a few keystrokes for longer pieces of text, and type accent marks and symbols quickly.