How to delete part of a keyframe in Moon Animator

image
I filled in 2 points in moon animator and it made what looks like a super long keyframe. I want to cut off the end part of this keyframe, is that possible to do?

“ungroup” the long keyframe selected on the item/edit/frame tab

I tried that but it doesnt do anything. Maybe there is a better way to accomplish what I’m going for? I need the “back” easing style but I want to cut out the part circled in green.

What I ended up doing was pressing = to copy each point between the two keyframes and then I can cut off the end.
image