Break the command into two parts.
@hiroto walks to spot 1.370 69 53 in zone 2
@hiroto exits left
keep in mind, the exit command removes someone entirely. The model stops existing when they are out of frame.
If you wanted hiroto to maintain scaling as he leaves, you will need to spot him off screen by directing him to walk to a spot that is at least x-100, then using the @remove command.