To Modify Trace Level for other Services or Applications

Trace Level configuration for some services and applications, such as the Service Manager, Director, and System Management Console itself are not covered by the Trace Configuration dialog in System Management Console. As of the 16.7.24 production build, all the Services are delivered with an initial of 4 (All) value for Trace Level, so you should only need to manually change this if you want to disable or reduce the level of logging. There should be no need to do this unless the overhead of tracing has a demonstrable impact on performance, as the Seq interface has plenty of ways to filter and limit the log data that you see. In order to change Trace Level, you need to:

Search for service or application's .exe.config file, under Program files (typically C:\Program Files\Bentley\eB\Server or C:\Program Files (x86)\Bentley\eB\Director) .
Open file As Administrator with your preferred text editor.

Find <system.diagnostics> Tag and change <TraceLevel> value.

<system.diagnostics>
        <switches>
            <add name="TraceLevel" value="3"/>
        </switches>
...
...
    </system.diagnostics>

Save the file and restart the Service Manager.
Repeat the Steps 1 to 4 for each service or applications that you want to change.