WISH: group option to calculate the group total refresh time.

I'm making some animations and the refresh rate of a piece of my definition is very slow. I need to take care about that to not generate frames with "not refreshed" baked geometry. I'm making the addition counting the time that profiler widget give me to every component in that group; if the component are spread over the canvas could be difficult or a messy task to do. Could be nice to have an option to replace the group name with the refresh rate of the group :)

Thanks!