Hi @Luurio
Let’s see…
In Unreal Engine, if you add a child actor to a parent blueprint, you cannot directly modify the child actor’s components (like a spline) in the parent’s editor. To modify the spline on the child actor, you will need to go through Blueprint scripting:
Get a reference to the child actor using the Get Child Actor node
Access the child actor’s spline component via nodes like Get Component by Class or by accessing the spline itself
Modify the spline via Blueprint by calling functions or setting exposed variables provided by the child actor.
In short words, you cannot modify the spline within the parent’s editor itself, but you do have the ability to control it via Blueprint by accessing the child actor and its components