Speed undefined for added entity during runtime (time > 0)

EntityAction can add an entity to specific position but it doesn't say what is the velocity of the vehicle. So if we add an entity during runtime (time > 0) we have undefined speed.

One may thing that using the LongitudinalAction with step dynamics would solve the problem, but in the same simulation tick we first insert Entity 1 and then have storyboard structure where Maneuver Group has an actor Entity 1 and event that contains just mentioned LongitudinalAction with trigger that is true just when EntityAction completes (probably StoryboardElementStateCondition). Pretty nontrivial stuff.

Best approach would maybe be to extend EntityAction so specify initial speed of the vehicle.