How do I modify animation playback speed in-game

I have a simple ten-second animation that loops in-game. It has an animation blueprint.
I want to adjust the playback speed of the animation anywhere from 0 to 100% interactively in-game while it’s looping.

I can’t figure out how I gain access to the playback speed in-game.

You can modify the Playback speed with a Timeline Applied to the Animation. You can then Setup how fast and when to Speed it up.