AC-7 Core and Sonar Rewind?

I was just about to begin my first session actually using the AC-7 while I do vocals only to realize that the rewind doesn't take me to the loop start. It moves me back one measure with every click or simply continuously scrolls if I hold it. I tried multi-tapping, but that still only yielded single measure movement.

Is there some way to get the AC-7 to perform as the "W" command does within Sonar?

Thanks...
Keni