Select lead in imperial/metric seperate to general mass unit setting.

I live in a part of the world that uses the metric system for mass, but a lot of dive shops sell imperial lead. Subsequently, I live in metric but dive in imperial.

I’d like to be able to add imperial lead to my setup without having my whole account in imperial. Or maybe an option to see both metric and imperial at the same time.

Maybe this is too niche a problem for mass implementation but I’ve got to ask