From the 'Settings' screen >> (Miscellaneous Settings) Troubleshooting & Support >> (Server-side Logging)

However, by default, these settings are disabled so users can't control tracing on the server.
To enable on your testing environment, add the <allowClientToControlServerTrace> entry in your client.xml file:
<config>
<allowClientToControlServerTrace>true</allowClientToControlServerTrace>
<servicesProvider>
<url>http://10.2.0.181:6563/service/longreach.jsp</url>
<documentLibrary>
<rootDirectory>{BASE}</rootDirectory>
</documentLibrary>
</servicesProvider>
</config>