Default to last step

[unhammer]

I always end up clicking the last three steps (because they're named slightly differently in the different modes) whenever I open up regtest. I always want to first see the difference in output (typically it's expected improvements – or I can tell from the final output what went wrong), only when there's something I don't understand why changed do I want to delve into the pipeline.

Can we default to showing the last possible step, or make it a preference cookie or something?