each box represents a 3d Cartesian grid
The first box is the amount of velocity you want to add to the x axis. A positive value (3, 66, 158, etc. up to 200) adds velocity to your right if your facing north. A negative value will send you to the left if facing north.
The second box is the same, except a positive value will be north, and a negative value is south
The third box is the Z axis. This is how far up or down you want to go
you can also go at an angle to all three axis: For example, 10 -5 44 will send you with a velocity of 10 to the right, -5 will send you south at a velocity of 5, and 44 is the velocity applied up