[Prefinem]

When I initially set the up, there was no way to edit or delete them. I haven't messed with them since, although, I did just check and there aren't any step functions in my account so it looks like they deleted the old ones.

It may be time to test them out again, I just go bit pretty bad with the last time I implemented them and lost about a weeks worth of work because of it being un-usable.