That’s in our long-term vision for the plugin, where we would move all the global settings (categories and weight multipliers) to work in a per leaderboard way, instead of affecting the whole instance. This would mean every user would have per leaderboard scores and would allow use cases such as yours.
It’s a reasonable feature, but it’s something I estimated as a mid-level effort in engineering resources. So we would need an Enterprise customer willing to sponsor the feature for it to be assigned resources.