It's a stupid, minor gripe. But having to exit, edit the config, and re-launch a modpack once I realize that quark is in it to turn off reach-around is one of those eternal frustrations that comes with playing modpacks.

Reach-around is admittedly useful from time to time, but I find causes more mis-placements than it's worth. Having a keybind to toggle it, preferably empty by default, would alleviate the features headaches considerably.