Having touble creating pawn blueprint spline.

Hello, I can’t seem to figure out what is that purple spline and how do i create it. I’ve been searching for a documentation of that component, but no luck. When I add the spline component into my pawn blueprint it creates a single line that I’m unable to edit. Here’s a picture of the problem:

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It’s a one of the pictures from THIS thread.

You can do it by using SetSplinePoints and SetTangentAtSplinePoints functions in blueprint, for this you need arrays of vectors as input:

Another option is to use AddSplinePoint() if you want to add them one by one.