You are able to copy and paste using the following keyboard shortcuts:
On a Mac computer:
⌘ + c = Copy,
⌘ + v = Paste
On a PC computer:
Ctrl + c = Copy
Ctrl + v = Paste
Another way to copy and paste elements is through the "Actions" button in the toolbar by selecting "Copy Selected Item" or "Paste Copied Item"
You can also copy and paste multiple elements at one time. To group the elements to be copied or pasted you can either click and drag over multiple elements or hold the shift key and click on multiple elements. Once the elements have been grouped you can follow the steps above to copy and paste multiple elements.