[dba-Tech] Not an Issue but a Feature

[Arthur Fuller]

Recently I accidentally did something on the keyboard and discovered a
feature I didn't know existed. I had several programs running at once, all
full-screen, and then suddenly they all shrank to little windows (not
icons) arranged in a couple of rows. Clicking any one of them restore it to
its original size. I like this feature! What is the keystroke sequence or
whatever that makes this happen?

-- 
Arthur