How do you reverse the search? <S-C-R> didn't do it for me. Either way this could be a good substitute for what I do now, tediously grepping .zsh/bash_history...
If by reverse you mean going forward instead of backwards, that should be done with Ctrl-S; it does not work in Bash though, since Ctrl-S locks the scrolling of the terminal. I believe this behavior can be overridden, through some .xinputrc settings perhaps, but I haven't still found enough motivation to look it up!
