"Base Address" Equivalent for WCF Client App.Config?

[=?Utf-8?B?bm9ubmI=?=]

Hi

Have I missed something obvious, or is there no way to use the
"BaseAddress" pattern in a WCF (.NET 3.0) client configuration file,
similar to that offered on the WCF Server?
IMHO this would make the transition from Dev to QA etc versions of WCF
servers much simpler.
Something like :
<system.serviceModel>
<client>
<baseaddresses>
<add
baseAddress="http://123.123.123.123:8000" />
</baseaddresses>
<endpoint name="MyEndPoint"
address="/MyNameSpace/SomeService"
i.e. the actual endpoint address = baseAddress + endpoint.address
Otherwise I guess this needs to be done programmatically, which seems
a waste of an otherwise flexible config file?
Thanks in Advance
Stuart