How do i apply IK to my skeleton?

i have found this guide but it doesn’t really explain me how to do it:

basically, i’m developing a game that uses the Razer Hydra, and i want the character’s hands location to be determined only by the hydra controller, and the shoulders and arms locations should be set consequently, with an IK skeleton.
the problem is that i don’t know how to set it up.
Thanks.

In your animation blueprint look for the Two Bone IK node.

yes but does my skeleton have to be compatible?