Sticking in M4 Drumline?

I have no idea if this is already a feature and I just missed it, but the sticking seems to be a lot clunkier than in M3's drumline. My main complaint is in the process of writing sticking out, where in M3 you could use the left and right arrow keys to select the previous or next note respectively you can't in M4.
If it is a thing and I just missed it, whoops! If not, I'd love to see this be a pretty prioritized feature addition.