How do I delete songs, videos and entire playlists from my iTunes Library?

I have iTunes 10.2.1 and I am having a lot of trouble deleting things. I want to delete a number of songs from my library. There are also quite a few playlists that I would like to modify. How do I rename a playlist? When I right click on it, the only thing that pops up is "Open in new window" and "export". I have tried googling it many times but I don't get any help.How do I delete songs, videos and entire playlists from my iTunes Library?
I dont think you can rename a playlist once its made, though you can make a new playlist, name it whatever you like, and then drag the contents of the old playlist to the new one.



If you want to delete songs, have you tried using the "delete" key on your keyboard? That works fine for me. Just highlight the songs you want gone, and click the delete key.



Hope this helps