Map tab - assign rarity affinity to map sub-tabs

It would be nice to be able to apply a rarity affinity to each of your map sub-tabs.

I would want 1-2 to be normal, 3 to be magic, 4-6 to be rare.

That way, when you want to pick out the rare ones, or sell the normals, or alchemy the normals, or *insert whatever reason* you don't need to filter them out and pick the ones you want out of the muddle. They're all just in the right place by default.

It's not like mechanically this is any different than assigning unique affinity to any other tab, so the tech surely exists under the hood.