You can use a text editor or an online copy and paste tool to copy a large paragraph of text. In the text editor, you press the shortcut key of Ctrl-C to copy the current text and then use the paste tab to paste the content you want to copy. In the online copy and paste tool, you can click the copy button and choose the location you want to paste. Then, you can use the paste tab to paste the content you want to copy. No matter which tool you use, you need to be careful not to paste existing content into the wrong area.