Adding my vote to this as well. WebEx, Connectwise, TeamViewer - most of your major competitors offer the ability to copy and paste across a remote session. Using chat is not a viable option because there's a limit to the amount of text you can paste at a given time. The fact that you don't have this basic functionality is honestly a major problem.
The ability to copy into a shared clipboard, and paste out of that shared clipboard, would be extremely useful for rapidly sharing text or moving it onto a shared screen.