I just installed Unity, on Ubuntu 10.10, to try it out. I've tried fiddling with a few things, but I can't work out how the applications are grouped and listed.

I mean - if I click on the Applications in the launcher, we get the list of applications installed, with the option to narrow the selection by group.

i.e. |Search box|All applications|Accessories|Games|Internet|Media|Office|System|

My question is where that list is generated - my machine is mostly for work, so the games have been uninstalled (and I get a "there are no games on this box" message, which is nice), and there's a stack of other stuff I'd like to see under a new group of "work" or something.

Obviously, a logical follow-up - how does unity know how to classify the applications into those groups? Is it the info in the .desktop links to them?