Manual Tracking in Fusion: recording position keyframes

I searched the subreddit but couldn't find an answer, so here goes.

I am trying to manually stabilize a video by using the transform node in Fusion and changing the Position values every x frames.

If I drag the on-screen handle to change the position, no keyframe is recorded.
But if I change the values in the inspector then a keyframe is recorded. Also if I set the value in the inspector I cannot use the left and right arrow keys to move frames i the timeline.

Is there a way to record a keyframe when using the on-screen handle?