How do I change the path in all my tests?

We have two different environments and for those environments the endpoint *and* the path changes, e.g.

http://env-qa.domain.com/path1/serviceName

http://env-uat.domain.com/path2/serviceName

I know how to use the Environments feature to change the Endpoint URL (e.g., http://env-qa.domain.com/) but how do I change the path (e.g. /path1/serviceName)?

I looked through the Environments help, etc. but can't find anything that tells me how to do this. The help is ... sparse and much of it is out of date.

Thanks!