To copy an item in this product, you need to select it first. To do this, you can hold the left click pressed and drag the cursor to overlay the item. After it's selected, press Ctrl + C key combination or use the Copy button from the upper toolbar. Regarding your second question, to undo a move, you need to press the Ctrl + Z key combination or use the Undo option, that is situated in the upper bar. For additional information about this program, download and read the User Manual available on the following website.