Indie rock loops construction kit question

Hi - does anyone know how the construction kits are out together? Are there separate tracks for bass, guitar drums? Or is a stereo loop with everything together? Thanks.

The instruments are all in separate tracks, so you get to pick what you’re going to use.

Great. Thanks. I would think then for the bass tracks I can have it set to follow a chord track and transpose to the song structure of whatever I’m working on?