Do I need a different Netflow sensor for each application I track?

I have setup Netflow on the distributed switch of our virtual infrastructure. I have also started setting up custom channels to track specific application activity etc. I know that I can add multiple channels to to a single sensor which will show me overall traffic speed/volume for the specified channel, but I am wanting to have a Top Talker/Top Connections graph for just that channel to identify who (by IP, computer name etc) is talking to the application. Am I able to set up multiple custom Top Talker graphs with a single sensor that filter the netflow data to only show the information I want?

I know I can apply filters at the sensor level that will do this, but that would mean that I would need a sensor for each App I am tracking. I was hoping I could define a custom channel (example Channel X) on a sensor and then make a custom graph to display the Top Talker on channel X. Then define another channel on the same sensor, channel Y, and make a custom graph to display the Top Talker for channel Y. Is this possible?

Thanks

Jeremy

channels custom-channel custom-sensor filtering netflow top-talkers