Accidentally did a gesture I can't replicate

[hobbbz]

I moved 2-4 of my fingers from the top of my trackpad down to the bottom. When I did this a row of text documents appeared above the dock.

This wasn't Expose for apps, I had no text docs open. I have no idea what I did. Any clues folks?

 

[Ashka]

I moved 2-4 of my fingers from the top of my trackpad down to the bottom. When I did this a row of text documents appeared above the dock.

This wasn't Expose for apps, I had no text docs open. I have no idea what I did. Any clues folks?

Three fingers down App Exposé. Don't need an app open on the desktop, open on the dock & Menu bar is enough.
Try selecting preview on the dock then three fingers down on the trackpad.

 

[hobbbz]

That was it, hover an icon and use 4 fingers down.