Found this by accident. I was trying to do a control break to show ping statistics.
If you do control F13 F14 quickly it does a control break. Control F13 by self didn't but if you keep control down and do F14 as well it shows me the ping stats and carries on as you'd expect. I did get it to work once with just a few control F13s but couldn't confirm that one.
Hope that save some time for someone..