Plug'n Script Envelope Follower For Volume

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Hello all! I'm trying to figure out a way to set up an Envelope Follower where the volume level of one audio source (A) is used to modulate the volume of anther audio source (B). It would be like a side-chain process that analyses the volume envelope of one audio track and uses that information to impose that volume envelope onto a audio second track.

Is this possible with Plug'n Script? If so, any ideas how to set it up?

Thanks in advance for any thoughts and suggestions!