How do I clear the copy/paste section on virtual keyboard?

Where is escape button or button that takes back to previoussection of conversation. It used to have a down arrow key on the old virtual KB. I tried using the return key to return to go to the conversation list but it only works if I'm typing on the "To" box and doesn't work on the message body. i only return to Conversion list if slide open the physical KB. is this a bug?