Sound track pb on Premiere Pro: all sound files go onto track 5

Hello there,

Has anyone already encountered this problem when trying to bring a clip onto a new timeline in Premiere Pro: the audio of the mov file goes straight on Track 5 (I never need 5 tracks) and all subsequent audio files also go onto track 5. I just want to get rid of this "track 5" and resume working as I always do, with my camera audio (from a Canon 7D) in Audio track 1 so I can only keep it for sync purpose, and the audio track(s) from my H4N on track 2 and 3 when applicable.

Thank you very much for your help here.

Gerard