I have a single ezdrummer track in Sonar which I created by copying selected clips from ezdrummer and pasted them to the sonar track. This track is of course a SoftSynth track with ezdrummer linked so the midi notes will play the ezdrummer drums.  Then I created a number of velocity envelopes to modify the volume of the drum clips at various points editing them in Sonar's automation lane. 
 
Playing this back works great. Now I need to bounce/mixdown the ezdrummer track to an audio track to ultimately mix with my other audio performance tracks. However, no matter what I do the ezdrummer track is recorded to a new audio track but the automation track is ignored - it's all the default volume. I can't figure out how to get a recorded drum track that follows the automation lane I created.

Hi. If you use bounce to track, you have the option to include, or exclude automation.
Freeze track only processes the audio from the synth.
Hope it helps.
All the best.

Thanks for the quick response. I had no idea what Freeze Synth was; I was trying to do this via setting various inputs and outputs.
It turns out that, in Sonar Platinum, Freeze Synth is what I need ... and works!
Thanks again for your help, I was spending way too much time trying to figure this out myself :)

Glad to be of help

I've been trying to get Studio One to do what Sonar does so easily.  Anyway, as Zargg has already explained, just bounce or record EZDrummer to audio tracks, then process and automate those audio tracks any way you like.  You can then freeze and mute the EZDrummer synth.  If you need to come back to it, tweak something and bounce to an audio track again for whatever reason, it's still right there in your project.
 
Not sure if you're using multi-out from EZDrummer, but you can assign each EZDrummer mixer channel to it's own audio channel in SPlat.  In that way you can process each kit piece, the room, and so on, individually.  There are threads and tutorials on doing that.
 
Btw, for the longest time I didn't know that you could record the output of a synth like EZDrummer to an audio track.