rws/eff idea? shroud for views?

Would cevo/esea be able to add a sub eff/rws for maps. aswell as your general eff/rws?

lets say a player would have an average of 15 eff/rws, but on cbble his average would be around like 11.30eff/rws if its a bad map for said player, or even see if what you are doing is improving your "prescence" on said map.