Soft Body - Return to Original Shape?

[entry-newspaper]

I want to have a soft body be impacted by a collider, and have the resultant waves propagate for a time.
But then I want the shape to return back to the original shape. I want to be able to direct that return, with precise key-frames.

How would I do this?

Thanks!

[noseman]

Please make a very simple sample file (no materials or anything not necessary for the effect) and post a link so I can take a look

[entry-newspaper]

Will do, thanks. I pivoted to a different solution for the job. But I'd still like to know, so I'll post an example file as soon as I can free up time.