removing items from the top of the activation pane border

[robbo42]

I know that the answer will be simple and I will kick myself for not seeing it when I am told, but I inadvertently dragged three files (two folders and a file) upward in Alfred and now they live in a "hump" on the top border of the activation pane. I want to remove them from there (but not delete the originals).  How do I do it given that all the "obvious" ways don't seem to do anything? :-(

[RodgerWW]

OPTION + Left Arrow to remove from buffer.

 

Also, open Alfred Prefs, Click on Features, in the left pane click on "File Search", then click on the "Buffer" tab on the right. It shows you all the keys there to add, remove etc from the Buffer.