...
When a proxy is enabled, it will forward traffic in the configured manner. You can also record from it as well as monitor its events.
You can either click the Enable Proxy button in the configuration panel or or right-click the appropriate proxy in the Virtualize Server View and choose Enabled.
...
Once enabled, the proxy’s icon will change from gray to color.
Disabling a Proxy
Either click the Disable Proxy button in the configuration panel or right-click the appropriate proxy in the server view and choose Disable.