ranger --copy-config=all
This will copy all the default config files from /usr/local/lib so you can make edits without messing anything up.
Huge shout out to https://dquinton.github.io/debian-install/config/ranger.html for explaining this and so much more. Took me a while to find it, just reposting to hopefully make it a bit easier for someone else searching down the line. GLHF!