Disable *error-0-entry.txt

Hello, We are using SoapUI4.5.1 free version. I enabled "Generate Report statisctics" options and 3 log files are created: LoadTest_1-error-0-entry.txt, LoadTest_1-log.txt and LoadTest_1-statistics.txt. The *entry.txt file contains the SOAP request. The request that we are testing contains user credentials that we should not saved into a file. Is there a way to do the following:
- continue to have generated *log.txt and *statistics.txt files
- disable creation of *entry.txt file or exclude SOAP request from the *entry.txt file
Thank you.