Adding rank up resources to champs individually
I'd love to be able to use my rank up resources as and when I have them available, rather than having some expiring in the stash while I'm working on gaining others.
For example, I've been sitting on a full inventory of T4 skill catalysts with 3 now in overflow, while I'm working away at getting the necessary T5B catalysts to rank up my next champ. If I could put individual resources towards rank ups earlier, there would be much less wastage from expiring resources