Problems moving spline

When you select your spline actor, you need to select one of the spline points after that. With one point selected, you can extrude/duplicate it by holding Alt and left mouse dragging. If you don’t select an individual point, the entire actor will be duplicated.

Hi,

My goal is to make a tube for transport items like the Conveyor Belt as in the Satisfactory game.

I’m stuck spawning the tube right now when I create the tube it’s always deleting and creating a new one with a new location but when I drag the mouse it doesn’t erase some meshes and it appears on the screen maybe I’m not doing best approach for this type of system i would like you to help me.

Thank you.

Problem: Screenshot - feb2e303861d4e0cd27149e78db10256 - Gyazo

Player Blueprint: Screenshot - c0174d106ff2a56615f84ecaf13846c8 - Gyazo

317157-playerblueprint.png

Spline Actor: Screenshot - 38c82ecd28a9d3b8bb8d107c7441de9e - Gyazo

                 https://gyazo.com/71e651805d044d67370d7e5b1398b247 

I know how the spline works in the editor but I want to do this in game.
As in the game Satisfactory.

Please I can’t figure out how I do it