The copy (CTRL C) and paste (CTRL V) feature can be found in the WMU running versions 1.13 and above.
In order to use the copy and paste feature you must establish an active SSH session to the device. From there you may copy what is in your terminal window by selecting the text and using the CTRL C command to copy. From there you may use the paste command to transfer the selected text to your text editor or desired program.