Paste Object: Trace - Ctrl-V

Click Edit > Paste (Ctrl+V) to Paste the last copied or cut object(s) onto the Editor.

Click Copy to copy the selected object(s) of the design.

Click Edit > Paste (Ctrl+V) to paste the copied object into the Editor where the cursor is placed. 

Once you have copied or cut an object, you can continue re-pasting it until you have copied/cut something else into the clipboard.