PJ Change Requests-don't prefill estimate from price

SUGGESTED

There are times when I enter a Time & Material change request for a certain price, but there shouldn't be an estimate, so 0.00 estimate. Sage is automatically prefilling the estimate from the price.  I am not  selecting "Prefill Job Estimate".  The only way I have found around this is to let it prefill the amount, then Update Job Estimate as approved, and then go back into the "Cost" Column under the Cost Estimate View and zero out the amount that had prefilled.  Is there a simpler way to input a change request with just a price and not have anything filled in for "Cost" under the Cost Estimate?