[Meads]

The max session length at 48kHz is 13hrs, at 96kHz it's 6 hours and at 192kHz it's 3 hours.
So probably your session start time is way before the start of your audio material. You can change that by going to session setup (cmd+num block 2 on mac or from the "setup" menu) and change the session start time to something closer to your actual audio material start. A dialog will appear, where you should choose "maintain timecode position".
After that you'll have plenty of space to the right.