Is there a plug-in, effect or process in Sonar that is equivalent to the Adobe Audtion "Sound Remover" function?  Basically, with sound remover, you can select a portion of a clip (perhaps one with some background noise) and the tool will remove that sound signature from the clip.  This is a particularly useful tool when editing dialog for video and I'd like to be able to do it in Sonar.
 
Any ideas?

No. Best bet is a third party solution like rx from izotope

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iZotope RX3 has this and so does the Waves X and Z noise. But the RX3 is way better than the Waves X and Z noise.
 
CJ

Reafir and it's free...