Trace categories are listed in the navigation tree under Tracing. Specific trace items are listed under each trace category. If you are working with technical support to resolve a problem, you may be asked to create a trace file and send it to them. Technical support will tell you which trace items to select.
Note: Only development staff and technical support have the tools required to read traces generated by Host Integrator. Unless you are creating a trace to send to technical support, you should not enable tracing.