Pin Connections for Sends

Hi there, question regarding Pin Connections and sends.
I want to Send Audio to a Bus with the previous Plugin activated. But that previous Plugin should be bypassed for the rest of the plugin chain. However, when I add outputs to the plugin (in the Pin connections Dialog), I dont know how to only route the first stereo Signal into the Send and Skip the send with the second stereo Signal. The result is a four channel send.
Am I missing an Option?

Why not add the plugin to the Bus instead, then?
(or create a bus for the plugin and then send the signal on).

it is the channel out (encoder) plugin from Airwindows and it doesnt like to have a gain change in between it and its decoder. I could for every send create an intermediary Bus with only this plugin, but would very much prefer to have it all happening in one track