Slow it down, & pick it out??

you mean like slowing a song down so you can pick out a lick or solo?

You can import the track and then convert it to a groove clip. Then change the tempo.

You can also use the looping feature to be able to take a certain part of a song and have it repeat over indefinitely.

You can also use the right-left pan to isolate a track in the stereo mix and use the EQ to further push the guitars up in the mix. But to really be able to take track isolation to the next level you may need the raw tracks.

I have noticed of late that several bands have been including in their deluxe editions independent tracks for pulling into a DAW to make it easier to learn their songs or to remix them for the listeners pleasure.

Dream Theater's Black Clouds and Silver Linings Limited Edition allows consumers to do this. I saw a couple of others recently but the artist names escape me at the moment.

There was at one time a program called "Slow Blast" that was included on the GT2 bundle. If you run a Line6 gear box it will allow you slow down things for you to learn.