You mean you don't know about waypoint sequences? All right, here's my explanation:
There is exactly one waypoint sequence per Zoom Tube. The sequence is a string of Zoom Tube Waypoints that begins with a multiple of 256 (that is, 0, 256, 512, 768, 1024...), and increases by one for each number in the sequence. These numbers are specified in the angle values of the Zoom Tube Waypoint Things. For instance, if a waypoint has an angle of 0, that means it's the first waypoint of the first sequence. If a waypoint has an angle of 2, that means it's the third waypoint of the first sequence. If a waypoint has an angle of 512, that means it's the first waypoint of the third sequence. If a waypoint has an angle of 514, that means it's the third waypoint of the third sequence.
If you're still confused, look at it as a math lesson. In algebraic terms, the formula for finding the angle value x of a waypoint with number n and belonging to sequence s is as follows:
x = 256(s - 1) + n - 1
This formula can be used to find the appropriate angle value for any waypoint. For example, let's say you wanted to know what angle value to give to the fourth waypoint in the fifth sequence. You want to know what x is, and you know that n = 4 and s = 5. You can plug those into the equation.
x = 256((5) - 1) + (4) - 1
x = 256(4) + 3
x = 1024 + 3
x = 1027
Therefore, you would give the waypoint an angle of 1027.