Numbers pop up menu copy

You can easily copy a cell formatted as Pop-Up Menu, just as you would copy any other cell: select, command-c, click in destination, command-v. The destination cell will then also contain that Pop-Up Menu

Is that what do you mean by "paste the values"?

SG

To copy/paste a value from a pop up cell and have it not be another pop up cell, you can double click the destination cell (as if you were going to type some text) before pasting.