Projected Balance Increments

Is there any way to adjust the projected balance Y-axis to reflect smaller increments? If the balance goes above $20,000 the Y-axis increments changes to $10,000. Example, checking balance is $40,000 but never goes higher than $50,000, why would the Y-axis start at zero and go to $50,000 at $10,000 increments. It makes the line look very flat.