I just want to say that I also would like to have this feature. I wanted several
times in different situations. In my last case I was working in a big refactor
of some piece of code and one function was done and tested. Hours of works I
didn't want to miss. But I don't want to record all, there's a lot of trash
around that function. Even the original code would continue to run if I add this
function maintaining, so it makes sense to just record it.