The ChainBall and LaserHarpoon are part of the Trajectories part 1 package.
Now I’ll be working on the new package:** Trajectories part 2** which will contain Axe & Boomerang launch and rotations. Also in this case you will be able to edit the axe Flying trajectories via spline. You can see a preview here https://youtu.be/cu1Fk1M88BM?t=109