Hi,
For this, you have several options:
-- get the velocity of the gameobject, the velocity always is in the direction of traveling, so simply normalize that vector and then apply a multiplier. Use the "Get Velocity" action for this.
-- get the vector of one of the axis of the gameobject. to do this, say you want the vector describing the z axis of a gamobject, you would use "Transform Direction" action and simply set the local direction to what you want. In our case, the z axis, so it will be 0,0,1 the stored result will be a vector describing that local direction in world space.
Does that seem to be what you need?
bye,
Jean