Sure! Let’s say you want to script against one environment, and then run load tests against a different environment. One easy way to do this is by overriding the DNS entries for your target environment with a custom hosts file.
To get to it, open your test scenario and click the wrench for the v-user group(s) in question.
Click to expand the custom hosts file…
Your custom hosts file should use the usual
/etc/hosts format, but limited to a single hostname per line. Also,
comments in your hosts file may be ignored or stripped out.
Read more about this and other advanced configuration options in Running Load Tests.