Currently there is no way to select a whole bunch of unwanted aliases to delete them in one go. I have to select them one by one. After deleting one, at least the next item should be auto-selected, to make things easier. Now i can delete one, go down, go up, and only then i can delete the next one.
Even better would be an option to wipe all aliases, except the built in ones.
That's cool. I just stumbled over that, because i had to clean up maybe 150 of them. Thanks for the tip with the prefs page, i check that later. Right now i have too many applications open.