Need code/BP to draw splines like in BP

I need a demo ready in two weeks that includes allowing the player to connect two objects with a spline like connecting two nodes in BP. I got the drag part down, I know how to get the mouse position, I can handle the drop, but for the life of me, I can’t figure out how to draw the spline. I need something: BP/C++/Marketplace - anything! But it needs to look and work pretty close to how it does in blueprints.

Just so that you know, I tried reverse engineering Unreal’s spline class for run-time modification by the user, but I can’t figure out how to get a reference to specific points on the spline to update each point’s transform as the last point (end point) is being dragged.

Can you help a brother out? I really need this.

Thank you.