I've been wanting / missing this one forever. Back when I was using Logic 5 on the PC, there used to be a DirectX menu in the sample editor so that I, for example, could apply a High Pass filter to a short section of audio and get rid of a plosive without affecting the rest of the file (as opposed to inserting on a track). Mac users that owned Protools interfaces also used to (or do they still?) have an audio suite menu in the same place. But there has never been a menu to use the built in Logic and third party au plugins destructively in the sample editor. I've been requesting it for years and years, not only on forums like this, but from apple's feedback webpage as well as in person when I talked to the Logic developers at a dinner after the AES in 2005. How hard can it possibly be to implement this?