Suppose i found a song from internet with the tag
"ATB with Heather Nova - Renegade (Airplay Mix)"
[Artist] = ATB
[Name] = Renegade (feat. Heather Nova) (Airplay Mix)
or with Tiesto Feat BT - Break My Fall
[Artist] = Tiesto
[Name] = Break My Fall (feat. BT)
simple isnt't it, how a Locate->Artist
..will show you all tracks by ATB or Tiesto, regardless of who it is with or features...
a [n=renegade] in the search bar might show
Renegade (feat. Heather Nova) (Airplay Mix)
Renegade (feat. Heather Nova) (another Mix)
Renegade (feat. Heather Nova) (yet another Mix)..etc.
if u have click the artist title bar, you get all the ATB tracks and thier repective mixes, sorted in order, that are in your library along with other tracks with the same name.
I find i have almost no use to specifically create Featured Artist tags at all. [n=featured artist] will show you all tracks that artist is on. Most of the time i want to know which mixes of the same track by the Artist i have, and i have a lot of EDM music working this way.
You might find the name column is getting very long when you do this, in which case
Options->Tree & View->List->auto size coulmns (check)
will give it a more uniform look.