Is there a setting or function that can add time between explosion steps?  In the Animation Motion Study panel  I can manually drag the start and stop blue diamonds of each step to create gaps but it would be nice if there was a way to do this automatically. 

I undertand that in a sophisticated animation there can be lots of overlapping steps but in my animations I just want the explosion to show a part coming off, then have a pause period, and then show the next one moving, and then the next one, and next one.   - as opposed to having them all moving one right after the other.    I think it is easy to understand the animation if there is a few seconds between each step.