Ok, I found the issue with copy and paste. It works copying and pasting from the client to the local desktop but is missing the trigger to update the client's keyboard on a clipboard change. Its a quick fix. The key press pass through is a little more complicated. F11 is the fullscreen key for a number of applications; this includes mRemoteNG. So it is caught by the first application that will receive it. This is the same reason there is a CTL-ALT-DEL has a pass through already. At this time I am kinda at a lost on how to handle it. Even if all of the key combos that are caught by the local Windows desktop or mRemoteNG, this won't fix control characters or Unicode characters that maybe requested. I think the ultimate solution for this is a virtual keyboard but will take time to develop. Copy and Paste should be fixed in the next few days with a couple of other bug fixes. Sorry, but as of right now, there will not be a fix for passing through F11.