Shouldn't the SceneComponent properties not be editable?

[Skulloire]

Maybe I’m misunderstanding but both the VisibleAnywhere and BlueprintReadOnly are read only specifiers correct? So how come we can edit them in the blueprint editor?

[DanM]

Component’s are a little different with that. VisibleAnywhere will make the properties on the component to be visible; whether they are editable or not. You aren’t editing the component variable itself (i.e. Comp's address in the code below)

For example:

class MyComponent : public UActorComponent
{
//..
    UPROPERTY(EditAnywhere)
    int32 EditableInt;
    UPROPERTY(VisibleAnywhere)
    int32 VisibleInt;
    int32 NonVisibleInt;
};

class AMyActor : public AActor
{
//..
    UPROPERTY(VisibleAnywhere)
    UMyComponent* Comp; // will show EditableInt as editable,
                        // VisibleInt as read only,
                        // NonVisibleInt won't be listed
};

Also the Blueprint specifiers are for blueprint code access specifically, not the properties editor within the blueprint.