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Another less-known use of the Control key is to make a quick copy of the selected text.
Try this: make a document in Word and select some text. If you drag the selection and drop it somewhere else in the document, it will move the text to where you dropped it. So far so good.
Now, hold down Control and drag-and-drop the text to different location in the document. Notice that this time, Word makes a copy of the selected text and puts it in the target destination. You can use this trick to quickly make a lot of copies of selected text.
For the most amazing trick of all: once again, select a range of text. This time, hold down both Shift and Control and drag the text to a new location. Notice that it inserts what looks like a copy of your text. Now, make a change to the original text you selected—the copied text mirrors the changes you made!
In fact, by holding down Shift and Control, you’ve created a link. Any change you make to the original text is automagically updated in the linked text. (You can even use this trick to link automatically updating text between two documents!)
