New L2 Store Appearence Modification Scroll for Dual Daggers

Since grade of dual daggers start from S80 (and not only because of that), there are many beautiful lower grade single daggers that aren't available as dual versions. So I wish to see a new appearance modification scroll in L2 store specifically for R-R99 dual daggers that will consume any 2 lower then R-grade single daggers and make corresponding appearance, or may be consume just 1 single dagger and make dual appearance of it.

Probably most popular example would be two mamba edges appearance. (Existing mamba edge dual daggers consist of mamba edge and angel slayer, not two mamba edges)

Same goes for dual swords, but probably only for combination of S-S80 grade swords, if I'm not wrong below S-grade all combinations are possible.