Enemy Switch and Survival Countdown Tiles

I love using MNMags plus storm and MHawkeye, but it is really annoying to watch 1 speedshot tile killing the last guy in a wave, to all of them just fading into smoke without hitting anyone. It would really help if the other countdown tiles strike the next batch of enemies when they appear (it would help a lot in some fights on the cover reward of deadpool daily).

Also, sometimes one enemy dies after a surprise cascade and I end up with a countdown striking someone I didn't want. Being able to choose who is going to get hit with it after someone died before the activation due to a surprise factor would be amazing. Doing it when a timed power like fastball hits(when it's not a AOE) or when an enemy dies and there are still cascade matches after that would be helpful.