I was editing a file in gvim when I inadvertently pressed some key combination that caused the vim window to disappear from the desktop. I looked in ps and found that it was still running. Checking the tool bar at the bottom of my display I noticed that a large rectangle now occupied the second of four boxes on the extreme right hand side. Clicking on that box brought back the gvim instance but hid the other windows that I had opened.
I discovered that these are gnome workspaces. So I continued to work. However, at some point while reading the workspace documentation I decided to click on the "hide all windows and show the desktop" button on the left hand side of the lower tool bar. This indeed cleared the desktop but it also emptied the second workspace and I cannot retrieve my vim instance which ps still shows as running.
Questions:
What key combination places the window with focus into another workspace?
What key combination or other method moves it back into the primary workspace?
Why did hiding all windows empty the alternate workspace?
How do I get my vim instance back from wherever it is gone?
Regards,