How I can move many hitpoins at time please?

Well. That’s the question…I need to move many hitpoints at time, because they are in te top of hit of drum, and when i change de time to slow time a little bit of sound make like artifacts. Ok, I dont know why but can’t move mor than one hitpoint at time (is seems really absurd). Someone can give to me a solution? T’hanks (and sorry for my “not” english).