How to Get a Window Back on Your Ubuntu 16.04.5 Desktop on a Thinkpad P52 with Ctrl and Fn Switched
This post shows how to get an "off-screen" window back on your Ubuntu 16.04.5 desktop.
Step #1: A) Click the program group. B) Click the "off-screen" window
Step #2: Press Fn Alt F7 at the same time:
Step #3: Use the cursor keys to move the window until you see it. Using the cursor keys tends to work better than the mouse which may not work.
Pic of the keyboard from [link]
Ubuntu logo from [link]