Hi Bill,
thanks for your feedback, it's much appreciated. I have to think about such implementation since it might be complicated or even impossible. The general problem with the navigation frame is, that there's no guarantee that it will have the focus. Because of the nature of the remote desktop control, all keyboard input is intercepted for the remote session and there's no way to get a hook into those keyboard events. The main problem will be consistency. When a folder or document node has the focus, the shortcut will work, if an active remote desktop connection is selected, the shortcut will not work because it will be redirected to the remote session. I think this might confuse most users.
A feature that might be useful for you is the "search as you type" functionality in the tree. Again, it will only work if you haven't selected an active connection. Select a folder or document and just type in the first couple of characters of a connection or folder and it will immediately select the first match.
cheers,
Stefan