help changing media info

When I try to update media info for a song from a burned mix cd it changes
the info for every song that was ripped from that cd. How do i change each
one individually since they are all different artists and/or albums?

 

Click the "only update data for this track" option in the Find Album
Information tool. It's new to the latest revision, so you may not have
noticed it before. (I may have the checkbox not quite accurately titled,
but it's something like that.)

 

Where is this? I don't see it antwhere...

 

I went to the library, clicked on a track from CD by a friend, selected Find
Album Info
randomly typed in "Avalanches" in the Search pane because I like that band
clicked on the first match - 11 Avalanches from Momentum by Koji Asano
clicked Next
---> Important part begins now
clicked EDIT
clicked "This is a custom mix CD"

I then exited because the info was wrong, but if you were doing this
process, this would be what you want to do.