I second that!

First you pick a song/track. You indicate that this is the track that you would like to use as a template (you could choose what specific field you'd like to use, for example composers, band members, credits etc etc).

When all this is done you search for that song/track. Let's say you get 50 hits. In the view where you see all these 50 hits you choose (you mark them by holding down the Ctrl-key) 29 of those songs.

When you have picked the songs you transfer the information to all these 29 tracks with a quick command!

Instead of having to copy/paste this information by hand to all these 29 songs/tracks you can do it in one stroke!