Looper fadeout (Ultra)

[voes]

I watched a video on youtube (http://www.youtube.com/watch?v=Tf-K50n7mLM) with the Boss RC-20XL Loop Station and there is this cool feature where you can fade out the loop (on the video 2:30)

Wouldn't this be a cool feature for the ultra?

 

[scarr]

You can achieve a fade with a Modifier (with a high DAMPING setting) attached to the LEVEL or MIX parameter (depending on if you have parallel or series routing, respectively).