Microsoft Word has lots of useful undocumented features, here’s one from Propellerhead that will save you a lot of time and trouble. The next time you want to replace a chunk of text forget the backspace or delete keys, just highlight the block and continue typing. One click, that’s all, Word automatically places the cursor at the start of the highlighted section and replaces the text as you type. If you change your mind don’t forget the last action undo shortcut Ctrl + Z, which works with most applications. There’s loads more great tips and tweaks like that on the BootLog websites why not pop over here.