Unfortunately current version of Serial Port Redirector doesn't have such a feature. However we are going to implement it in 2.2.2 version. I think this version will be available today or tomorrow. Please check the web-site for update: http://fabulatech.com/serial-port-redirector-download.html
Or you can use "Check for New Version" option in Serial Port Redirector menu:
I'm glad to inform you that 2.2.2 version is already released. You can download the trial version here: http://fabulatech.com/serial-port-redirector-download.html