Map POI Tracking

[Resike]

I have create a small hook, to hide the stuck Draenor treasures from the world map:

hooksecurefunc("WorldMapFrame_Update", function(self)
    for i = 1, GetNumMapLandmarks() do
        local poi = _G["WorldMapFramePOI"..i]
        local poiTexture = _G["WorldMapFramePOI"..i.."Texture"]
        if poi and poiTexture then
            local ULx, ULy, LLx, LLy, URx, URy, LRx, LRy = poiTexture:GetTexCoord()
            if ULx == 0.07421875 and ULy == 0.494140625 and LLx == 0.07421875 and LLy == 0.52734375 and URx == 0.140625 and URy == 0.494140625 and LRx == 0.140625 and LRy == 0.52734375 then
                poi:Hide()
            end
        end
    end
end)

Is it possible to add this function to the World Map Frame's Tracking dropdown as "Show Trasures" as a toggle?