I think that sometimes you are saying 'the environment' when you mean 'the arrange window'. Press '1' on the keyboard and you're looking at the arrange window, where most of the action occurs. Press '3' on the keyboard and you're looking at the environment. It sounds like it's a priority for you that you don't want audio objects hanging around with misleading names and plugins still on them after you delete a track from the arrange window. If this is the case, the best option is probably to do your deletions from the environment in the first place. Go there, scroll around to find the object you wanna get rid of (which you'll know 'cos it has been meaningfully named by yourself :)), click on it and then press delete. After you've done that, you'll have a track which says 'Unused' back in the arrange window. You could leave it there and re-assign it manually later on, but it's typically easier to have Logic join tracks to audio objects for you when you create new ones, so I'd just click on the Unused track and whack delete there as well. This is not the only way to do what you want, but from what you've said it sounds like the most logical. Having plugins hanging around isn't a really terrible thing. Maybe just rename the audio object for the track you're about to delete to 'USE ME LATER' or 'UNUSED' or something, and then delete the track from the arrange window. If you really want to erase the plugins as well, click the arrow next to the word 'Inserts' on the channel strip, go to the 'factory' submenu and select 'Reset Instrument CST'.