Canvas duration

I put RSS widget on layout. It creates new layer Canvas and put it on. I can change duration for widget but not for Canvas layer witch is 1:00. Can I change it or not, that is the question?

The RSS ticker will determine the Layout duration, the canvas layer is showing that you have added an element as they are the only things that get added to a canvas layer (which is by default and cannot be edited), all other things (non elements) are on their own layer.
If you set a duration for the RSS element does that update the overall Layout duration?