I've no idea what is this function called, so let me write it around
In Unity when you press the Super button (aka Windows button) a quick search pops up, in which you can search between your programs and can run them by pressing enter.
Now, I would like to try XFCE desktop environment and I was wondering if there is a program or setting that would make this possible in XFCE.
Also if you know the name of this function please let me know, as it quite hard to google on this with out the proper expression