How to output Print String into a UI Widget?

I really can’t thank you enough!

I’ve connected my event tick to the Set Spline Points and set Loc1 to 0 of the Make Array and Loc2 to 1. To me it makes sense, but to the engine it does not - nothing is visible. Disconnecting from the event tick shows the spline mesh where I’ve put it by default in the Viewport of the BP.

That’s right, I am tracing the (red) laser every frame.

Spline and Mesh are set to Movable.

World / Local coordinate space is set as per your screenshot.